I think that this is every Jalop's dream.
Let me save you all a lot of trouble:
I personally like my SR20DET to 240Z swap, but the RB26DETT swap is a little more beastly. Even with a very mild swap it can give a built 370Z a run for it's money.
Whoever drew this up was ahead of their time. I'm not just saying "new is old again" but this is really a modernized version of what was but done at that time.