By internal work, you mean a complete rebuild with forged internals, right? Cause you'll need it to handle that much power. Sounds like it'll be a badass car though.

Why not just do the VQ35 swap though? It's way simpler than super/nitrous/rebuild, and you'll be running 12s on slicks...on a completely reliable daily drivable car. Plus, the VQ swap will only cost as much as the supercharger kit by itself. You'll end up spending WAY more doing the rebuild.