Sorry to see what happened.

not bashing you or nothing, but its a numbered car right?

now if you change the engine the car is not worth the same amount if it was orignal?

Why not just pick up a running RX7 paint it all white get your decals and your done, I don't see any point in a total rebuild of a numbered car that can never be put back to stock form, where the most value would be, unless you wasn't building the car for that purpose, then I guess it doesn't matter, just seems more expensive to put it back together, than to get a running car thats not missing everything.