Folvos are neat. I sold a B234 head to a Ford guy once, but never saw anything come of it. I look forward to seeing your progress! This will be fun.
Years ago when I read into it, it sounded like a far more complex swap. Welding a block to the back of the head and then milling it flat, etc. Then somebody figured out that you can just plug a couple oil returns and I think a water passage in the back of the block, feed the cam towers with an external line, and you're pretty much good to go. And Stinger sells 2.3 pistons that are custom spec'd for the b234 head. So, all in all, it's a pretty straight forward swap, especially since I know a very good engine builder who is willing to play around with unorthodox setups.