You are most definitely on the right track. There is some good info in this thread, so take your time and read through all 31 pages. Very good tidbits along the way
Simple setup cost effectiv............hahhahaha! Yeah couldn't say that with a straight face
But yeah....
P11 head
350Z or CBR coils
Taarks full conversion kit
Rebuild head (new guides, clean up/machine work, new valves, springs and retainers; $1000-1500 + cost of head)
STD cams( (whatever came with the head)
Forged bottom End
Then turbo, manifold, intake and the little things that add up. Get a xcessive and weld er up. Will perform for your purposes. People don't like them, but they work just fine. if you want to go one step further, plop some velocity stacks inside and go
Send it
Thats 90% of the way there. Its the details that really add up (ING-A1 coils, Mazworx IM, ID1300 injectors, E85 setup, CNC head, etc etc) and are worth the last 10-15%
It all comes down to cost vs what you want to spend. The head will make 500WHP with standard ports on standard P11 cams all day no problem (even better yet E85 or race gas). The head works that well.
You cannot compare how the DE head works with how a VE head works (especially interms of cams). The underlying concept in terms of cam profile vs flow vs rpm applies, but thats about it