Hartz 5 vs xl2 clutch with 4 evo carbon plates

[stusclues]

I'm still in the process of putting parts together. I'm looking at building either a 6 bolt inlet M1L, or perhaps one of the pinasco kits. Anyways, I'm just wondering whether an xl2 clutch, with 4 of the newfren evo carbon plates would be able to handle the power, or whether the hartz 5 is the way to go. I've got one of the hartz clutches here, it's an early one with the cutout basket, I was thinking that maybe I could just replace the basket and use that?

Help or advice much appreciated
Cheers, Raff