Johann, just an idea for your '39. I'm building one now and just noticed that the Revell 1/24 '37 Ford kit has BLAH_BLAH_BLAH_BLAH near the same wheelbase as the '39 Chevy. The '37 chassis fits nicely, has good wheels/tires, and a decent interior. The '37 also comes with a chevy small block. It would be a no-brainer to kitbash the two.