Not how I would do it, but whatever you find fun.
Char (6) Acc, Acc, Hld, Hld, Rec Red, Rec Red.
Firecages (4) Acc, Acc, Immob dur, Immob dur.
Hotfeet- take this for dmg or not at all imo
Cinders (6) Acc, Acc, Hld, Hld, Rec Red, Rec Red.
Fire Imps (5) Acc, Dmg, Dmg, Dmg.- If you find you have a slot to spare add another Acc.
Flashfire (6) Acc, Acc, Dis Dur, Dis Dur, Rec Red, Rec Red.
They're the only changes id make to the Fire side...not got a clue on the FF side though. Like I said though whatever you find fun in the long run.
I see u drop acc and hold dur to get rech red. Well having auto Hasten I don't seem to need more rech red, and I never run out of attacks, so I put my money on safety that 3 acc provides, as long as 3 hold dur (can hold up to +7s perma on a 1 vs 1, and let imps kill them slowly, but it's not worth the time really). About Hot Feet I never used it to do dmg, imo it isn't worth slotting the little dmg it does. I do use it to keep the foes aggro on me, playing the tanker part when team mates are in danger, since my pff prevents me from being hit... and I also use it to keep the aggro on me (again with pff on, which keeps me safe from all harm) while imps do all the killing unharmed (I did solo Nemesis AV after ED using that tactic, shame it doesnt work on AoE AVs though, since they kill imps while trying fruitlessly to attack me 
.
Personaly, Id slot Hot Feet for End Redux (2-3) and damage (3) and use the basic AoE control slotting, 2 recharge, 2 acc, and 2 mez slots for the power in question, well, apart from the AoE immob, it lasts long enough and recharges fast enough not to need recharge slots.
Suppose u can focus ur troller like that, but tbh I just use Hot Feet with Personal Force Field, so i can't attack at all! Thats why I don't need End Redx, because just using Hot Feet and Pff, my endurance recharge rate is by far enough too keep my blue bar full all the time. The reason why I don't slot Dmg is because it is not me doing the Dmg, but the imps. I mean I just use them in a panic situation , as a combo: PFF makes me invulnerable and hot feet keeps the aggro on me, so that foes don't attack teammates or even imps. Actually that combo enables me to "tank", if we understand tanking as keeping the aggro on yourself while others do the killing. An easy way to kill a non AoE AV -aka Nemesis, as I said before- is using PFF so that he can't touch you, and Hot Feet, so that his attention is on you all the time. You can't attack yourself, but
AV can't injure you either while you are in your bubble. That's why, with the aggro Hot Feet provides, AV will miss u on and on while imps kill him slowly, yet safely
Why the psy Epic? Since you dont take indomidable will, I think the fire epic will be a much better choice.
A Paragon Defender
Well the main reason why i took the psi epics is because Mind over body Dmg protection is 50% bigger than Fire Shield (following CoH planner 1.5C) and whereas Fire Shield protects against Smash, Lethal, Fire and slightly against Ice Damage, Mind Over Body protects against Lethal, Smashing and Psi Dmg, which is much cooler since psi foes are more common (and hated) at high levels (it's always a fun seeing a whole team alphaed by Babbage assasine cone attack -stone tank with minerals on included- and u standing as the only survivor not even orange, or ask people what they think about Mother Mayhem, an av that would need at least 7-8 blows to faceland u, and just 3-4 to do that to the tank). Besides, Mind Blast dmg is just the same as Fire Blast, but the number of foes with psi resistances is inferior to the ones with Fire resistances. Just to finish, I gotta say that i love the Psionic Tornado, which is AoE, power recharge decreaser on foes, and such a high damage it does, (that's even better with containment, have u tried the Fire Cages-Psionic Tornado combo? I use it like a Pseudo nova )
Hey guys, this is my build for a Controller Fire/Force Field, which I found was lots of fun. Don't mean to say this is the best build for this AT, but in any case I found it great to solo and for teams, mainly after lv.32
01) --> Personal Force Field==> Def Buffs(1) Deff Buffs (3) Deff Buffs (3) Rech Red (9) Rech Red (9) Rech Red (13)
01) --> Char==> Acc (1) Acc (5) Acc (5) Hold Dur (11) Hold Dur (11) Hold Dur (13)
02) --> Fire Cages==> Acc (2) Acc (7) Acc (7) Immob Dur (15) Immob Dur (15) Immob Dur (31)
04) --> Deflection Shield==> Def Buffs (4) Def Buffs (29) Def Buffs (29)
06) --> Swift ==> Run (6)
08) --> Hot Feet==> Slow (8)
10) --> Insulation Shield==> Def Buff (10) Def Buff (19) Def Buff (19)
12) --> Combat Jumping==> Def Buff (12)
14) --> Super Jump==> Jump (14)
16) --> Health==> Heal (16) Heal (17) Heal (17)
18) --> Aid Other==> Heal (18) Heal (27) Heal(27) Rech Red (34) Rech Red (37) Rech Red (43)
20) --> Stamina==> End Mod (20) End Mod (21) End Mod (21)
22) --> Aid Self==> Heal (22) Heal (23) Heal (23) Rech Red (40) Rech Red (46) Rech Red (50)
24) --> Hasten==> Rech Red (24) Rech Red (25) Rech Red (25)
26) --> Acrobatics==> End Red (26)
28) --> Cinders==> Acc (28) Acc (36) Acc (36) Hold Dur (36) Hold Dur (37) Hold Dur (37)
30) --> Dispersion Bubble==> Def Buff (30) Def Buff (31) Def Buff (31)
32) --> Fire Imps==> Dmg (32) Dmg (33) Dmg (33) Acc (33) Acc (34) Acc (34)
35) --> Flash Fire==> Acc (35) Acc (39) Acc (39) Immob Dur (39) Immob Dur (40) Immob Dur (40)
38) --> Bombfire==> Rech Red (38)
41) --> Mental Blast==> Dmg (41) Dmg (42) Dmg (42) Acc (42) Acc (43) Acc (43)
44) --> Mind Over Body==> Dmg Resist (44) Dmg Resist (45) Dmg Resist (45) End Red (45) End Red (46) End Red (46)
47) --> Psionic Tornado==> Dmg (47) Dmg (48) Dmg (48) Acc (48) Acc (50) Acc (50)
49) --> Smoke==> ToHit Debuff (49)
---------------------------------------------
01) --> Sprint==> Empty(1)
01) --> Brawl==> Empty(1)
02) --> Rest==> Empty(2)