If they ever raise the level cap it'd be viable but 77 base stats in luk is just too much. You'd be totally sacrificing another stat. (you'd only be able to get 1 other than luk decently high) This means you'd either have a vitless str build or a dexless int build. If you had near 100% variable cast reduction you might be able to get away with a 1 dex/1 vit int/luk caster build or something, but it'd be rough.
Honestly just getting like 30-40 base int and a few points in kaina and your sp should be pretty stable. I spam skills in pvp nonstop and rarely have sp issues. A handful of light blues(or just regular blues, they're kinda heavy though) would be fine. If you're duoing with another linker in ET(which is really, really effective) for kaupe spam, happy break(sit side by side and /doridori) will regenerate your sp in like 15 seconds to full.
Edited by Viri, 27 July 2015 - 07:07 AM.