Mike,
Yep, watched the last build very closely From what I can see, you already have all of the pieces to make 400RWHP. Mine has done it with TR Stage II 5.3 heads, and a FAST 90 intake manifold, 1.7 Yella Terra rockers and shorty headers from JTR. I'm just not sure about your cam. I'm using a cam with 230/224 .575/.563 111 LSA specs. I mentioned the dry sump because the guy that is doing my tuning recommends it for road cars that pull a lot of G's which you car looks like it will!
Joe