That would be cool. I just hope I finish my OHC mods by then. It's a long road, sometimes!
As for your motor: one of my spare motors is a 1967 400 that I was thinking of fitting my #13 heads on. I was going to run a 068 cam in it with a cast 4-bbl. mani and a Q-Jet. That would make it about the same set-up as you are thinking about. All I lack is something to put it into.