Welcome to the forum! We seem to have similar ideas for our build. Check out my Mav in the project section. I am keenly interested in your progress with the Mark VIII IRS, I want the same thing and almost bought a Mark VIII parts car last year, but chickened out at the last minute because I have too many other things to worry about with my Maverick right now. My freshened up, stock rear suspension will have to do for now.
Chevy engines in chevy's---mopar engines in mopar's----Ford in Ford!!!!---------the way it is supposed to be---good luck!!