I'm hooked! I love this idea! I had a 50 Packard with a ratted out interior and no drivetrain, but a straight nearly rust free body that I was waiting for the perfect Roadmaster chassis and interior to slam it on. It never materialized and the packard is gone now.
Was that just an interior fire? The Engine bay looks clean.
Here's some inspiration if you need it. They have some tips for rear wheel clearance as well:
