Well I can't help ya, but sympathize with your plight. I live in MI too.
The guys on the west coast have more flatties to choose from and I would't know what to do if I lived out there.
I found a very nice 68 Rayson Craft with 440 Mopar B/B wedge and velvet-drive a couple months ago (just what I wanted). It was just west of Chicago, a 5 hour drive from me. It took 2 years of looking to find.