Thank you for all the suggestions.
As for the sea level question, when you enter the barometric pressure in Tampa @ 30.24, that is what the Wallace calculator spits out.

I will contact the engine machinist about skimming off 4.25 pistons, that sounds like a good plan.

Was kinda hoping to reuse the cam/valvetrain that are there, but, much more than 12:1 sounds like a lot of cranking pressure. Don't want to raise the RPM range of the internal oiled engine too much past the 6400 rpm peak it has now.
I really don't know which way to go, I don't want to redo everything, that's why I am asking.

I am using a stock 76/77 block, so it really isn't a max effort anyhow, at some point I will get an aftermarket block, that's a whole new thread.

What is the high end of cranking pressure with E85? Or maybe another question would be, at what point will a stock mini starter not handle the compression?

Thanks again!!