This is what I am using at the moment. It brought my Ranged Defense upto 45.26%. I have the purples but haven't slotted them yet because I am only level 47.
Villain Plan by Mids' Villain Designer 1.4006
http://www.cohplanner.com/
Level 50 Natural Arachnos Soldier
Primary Power Set: Crab Spider Soldier
Secondary Power Set: Crab Spider Training
Power Pool: Leadership
Power Pool: Leaping
Power Pool: Fitness
Power Pool: Speed
Ancillary Pool: Mu Mastery
Villain Profile:
Level 1: Channelgun -- Achilles-ResDeb%(A), Dev'n-Acc/Dmg(3), Dev'n-Dmg/EndRdx(3), Dev'n-Dmg/Rchg(5), Dev'n-Hold%(5)
Level 1: Crab Spider Armor Upgrade -- S'fstPrt-ResDam/Def+(A), TtmC'tng-ResDam/EndRdx(7), TtmC'tng-ResDam/Rchg(7), TtmC'tng-ResDam(9)
Level 2: Longfang -- Achilles-ResDeb%(A), Apoc-Dmg/Rchg(9), Apoc-Acc/Dmg/Rchg(11), Apoc-Acc/Rchg(11), Apoc-Dmg/EndRdx(13), Apoc-Dam%(13)
Level 4: Combat Training: Defensive -- RedFtn-Def/EndRdx(A), RedFtn-Def/Rchg(15), RedFtn-EndRdx/Rchg(15), RedFtn-Def/EndRdx/Rchg(17), RedFtn-Def(17), RedFtn-EndRdx(19)
Level 6: Assault -- EndRdx-I(A)
Level 8: Suppression -- Achilles-DefDeb/Rchg(A), Achilles-ResDeb%(19), UndDef-DefDeb/Rchg/EndRdx(21), UndDef-DefDeb/EndRdx(21), LdyGrey-%Dam(23)
Level 10: Tactical Training: Maneuvers -- RedFtn-Def/EndRdx(A), RedFtn-Def/Rchg(23), RedFtn-EndRdx/Rchg(25), RedFtn-Def/EndRdx/Rchg(25), RedFtn-Def(27), RedFtn-EndRdx(27)
Level 12: Combat Jumping -- Krma-ResKB(A), GftotA-Def/EndRdx(29), GftotA-Def(29)
Level 14: Super Jump -- HO:Micro(A)
Level 16: Hurdle -- Jump-I(A)
Level 18: Health -- Mrcl-Heal(A), Mrcl-Rcvry+(31)
Level 20: Stamina -- P'Shift-EndMod(A), P'Shift-EndMod/Rchg(31), P'Shift-EndMod/Acc(31), P'Shift-End%(33)
Level 22: Tactical Training: Assault -- EndRdx-I(A)
Level 24: Tactical Training: Leadership -- GSFC-ToHit(A), GSFC-ToHit/Rchg(33), GSFC-ToHit/Rchg/EndRdx(33), GSFC-Rchg/EndRdx(34), GSFC-ToHit/EndRdx(34), GSFC-Build%(34)
Level 26: Mental Training -- Run-I(A)
Level 28: Fortification -- S'fstPrt-ResKB(A), TtmC'tng-ResDam/EndRdx(36), TtmC'tng-ResDam/Rchg(36), TtmC'tng-ResDam(36)
Level 30: Serum -- Numna-Heal/EndRdx(A), Numna-EndRdx/Rchg(37), Numna-Heal/Rchg(37), Numna-Heal/EndRdx/Rchg(37), Numna-Heal(39), Numna-Regen/Rcvry+(39)
Level 32: Venom Grenade -- Posi-Dam%(A), Ragnrk-Dmg/Rchg(39), Ragnrk-Acc/Dmg/Rchg(40), Ragnrk-Acc/Rchg(40), Ragnrk-Dmg/EndRdx(40), Ragnrk-Knock%(42)
Level 35: Omega Maneuver -- Zinger-Dam%(A), Posi-Acc/Dmg(42), Posi-Dmg/EndRdx(42), Posi-Dmg/Rchg(43), Posi-Dmg/Rng(43), Posi-Dam%(43)
Level 38: Frag Grenade -- ExStrk-Dam%(A), Posi-Acc/Dmg(45), Posi-Dmg/EndRdx(45), Posi-Dmg/Rchg(45), Posi-Dmg/Rng(46), Posi-Dam%(46)
Level 41: Electrifying Fences -- Posi-Dam%(A), GravAnch-Acc/Rchg(46), GravAnch-Hold%(48)
Level 44: Ball Lightning -- EnManip-Stun%(A), P'Shift-End%(48), Posi-Dam%(48)
Level 47: Call Reinforcements -- EdctM'r-PetDef(A), SvgnRt-PetResDam(50)
Level 49: Hasten -- RechRdx-I(A), RechRdx-I(50), RechRdx-I(50)