Endurance could be a problem depending on what you plan on doing with the build. But it shouldn't be too bad.
Raised defenses, recharge and you should have the chain.
Something to go from.
Code:
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First off, thanks for the suggestions. 
Your build gets the S/L def to cap, which I wasn't really too worried about anyway (just need 5 in range of Invinc to cap anyway), but the E/N def at 40+ is nice. Unfortunately, that sacrifices a lot of the Psi def, which I admit I may be sacrificing a bit too much for, but I like the idea of Invul w/30+ Psi damage, which you can nearly cap w/a small purple.
I do like slotting for 4 Basilisks for a nice 7.5% recharge bonus--I'll have to see if I can spare the slots somehow. Strike & Slash both recharge in <2sec, Focus in 2.32 and Evis in 3.4. I'll have a gapless chain, but certainly not the optimal one--what is the best Claws chain, and how much recharge do you need?
Potential end issues are why I pick up CP & PP from the Body pool, even though they're mostly afterthoughts. I likely won't have to run Tactics very often except when debuffed or facing Nemmies & Vengence or the like. Still, I like to see closer to a +2.0 recovery-to-end use differential, which I'm well shy of.
BTW, your build exceeds the cap for the 10% regen bonus, which is why I have a generic def IO in Tough Hide instead of another LotG.
An Offensive Guide to Ice Melee
So I'm designing my Claws/Invul for the inherent changes in I19 in mind and I don't know how much I like this build. I'm trying for decent Psi def/res and I might be sacrificing too much since I can only get my defenses to 40/31/33 (SL/FC/EN) range w/1 in range of Invinc.
I also have no idea what an optimized Claws attack chain should look like and don't have a lot of global recharge anyway. Followup stacks 2x comfortably, but not 3x. I meandered a lot, but ended up dropping Shockwave, even though initially I had envisioned a sweet Shockwave + Energy Torrent chain, but I figured w/spamming Spin, and wanting to be close to lots of mobs, I'd be better off, or at least can live w/no ranged cones (esp one w/KB).
Anyway comments & suggestions are greatly welcome.
Hero Plan by Mids' Hero Designer 1.803
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Level 50 Natural Scrapper
Primary Power Set: Claws
Secondary Power Set: Invulnerability
Power Pool: Fighting
Power Pool: Speed
Power Pool: Leaping
Power Pool: Leadership
Ancillary Pool: Body Mastery
Hero Profile:
Level 1: Strike -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(3), KntkC'bat-Dmg/Rchg(3), KntkC'bat-Dmg/EndRdx/Rchg(5), C'ngImp-Acc/Dmg/Rchg(5)
Level 1: Resist Physical Damage -- S'fstPrt-ResDam/Def+(A), ImpArm-ResPsi(7), ImpArm-ResDam(29), ImpArm-ResDam/Rchg(29)
Level 2: Slash -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(7), KntkC'bat-Dmg/Rchg(9), KntkC'bat-Dmg/EndRdx/Rchg(9), C'ngImp-Acc/Dmg/Rchg(11), Achilles-ResDeb%(48)
Level 4: Temp Invulnerability -- ImpArm-ResPsi(A), ImpArm-ResDam(11), ImpArm-ResDam/EndRdx(13), ResDam-I(13)
Level 6: Spin -- Sciroc-Acc/Dmg(A), Sciroc-Dmg/EndRdx(15), Sciroc-Dmg/Rchg(15), Sciroc-Acc/Rchg(17), Sciroc-Acc/Dmg/EndRdx(17), Sciroc-Dam%(19)
Level 8: Follow Up -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(19), KntkC'bat-Dmg/Rchg(21), KntkC'bat-Dmg/EndRdx/Rchg(21), Mako-Acc/EndRdx/Rchg(25), Mako-Dmg/Rchg(43)
Level 10: Dull Pain -- Numna-Heal/Rchg(A), Numna-Heal/EndRdx/Rchg(31), Numna-Heal/EndRdx(31), Dct'dW-Heal/Rchg(46)
Level 12: Boxing -- Empty(A)
Level 14: Tough -- RctvArm-ResDam/EndRdx(A), RctvArm-ResDam(25), RctvArm-ResDam/Rchg(27), RctvArm-ResDam/EndRdx/Rchg(27)
Level 16: Unyielding -- ImpArm-ResPsi(A), ImpArm-ResDam/EndRdx(31), ImpArm-ResDam(33), Aegis-Psi/Status(33), Aegis-ResDam(36)
Level 18: Focus -- Thundr-Acc/Dmg/Rchg(A), Thundr-Acc/Dmg/EndRdx(33), Thundr-Dmg/EndRdx/Rchg(34), Thundr-Dmg/Rchg(46), Thundr-Acc/Dmg(48), Thundr-Dmg/EndRdx(50)
Level 20: Weave -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(34), LkGmblr-Def(34)
Level 22: Hasten -- RechRdx-I(A), RechRdx-I(23), RechRdx-I(23)
Level 24: Combat Jumping -- LkGmblr-Rchg+(A), DefBuff-I(45)
Level 26: Eviscerate -- Sciroc-Acc/Dmg(A), Sciroc-Dmg/EndRdx(36), Sciroc-Dmg/Rchg(45), Sciroc-Acc/Rchg(45), Sciroc-Acc/Dmg/EndRdx(46), Sciroc-Dam%(48)
Level 28: Invincibility -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(37), LkGmblr-Def(39)
Level 30: Maneuvers -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(37), LkGmblr-Def(37)
Level 32: Tactics -- GSFC-ToHit(A), GSFC-ToHit/Rchg(42), GSFC-ToHit/Rchg/EndRdx(42), GSFC-Rchg/EndRdx(42), GSFC-ToHit/EndRdx(43), GSFC-Build%(43)
Level 35: Tough Hide -- LkGmblr-Rchg+(A), DefBuff-I(36)
Level 38: Resist Energies -- ImpArm-ResPsi(A), ImpArm-ResDam/EndRdx(39), ImpArm-ResDam(39)
Level 41: Resist Elements -- ImpArm-ResPsi(A), ImpArm-ResDam(50), ImpArm-ResDam/Rchg(50)
Level 44: Conserve Power -- RechRdx-I(A)
Level 47: Physical Perfection -- EndMod-I(A)
Level 49: Super Speed -- Clrty-Stlth(A)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Run-I(A)
Level 2: Rest -- Empty(A)
Level 1: Critical Hit
Level 4: Ninja Run
Level 1: Swift -- Run-I(A)
Level 1: Hurdle -- Jump-I(A)
Level 1: Health -- Numna-Regen/Rcvry+(A), Mrcl-Rcvry+(40)
Level 1: Stamina -- P'Shift-End%(A), P'Shift-EndMod(40), EndMod-I(40)
The last three powers were more or less tacked on for lack of better ideas. Ninja Run is more than fast enough for travel, but doing TIPS mishes and the like, I now stick some stealth on even my melee, but usually just a stealth IO in an alt Sprint power. I figured, getting SS + the stealth IO would be better still has an occasional full stealth (and a "real" travel power).
An Offensive Guide to Ice Melee