Heard back from the seller this morning and it appears there would be more work than was apparent from the pictures. Still a nice looking coach, though!
His response:
I'll take some interior pix today. the rocker panels and floors are really rusted, the frame is coated and no rust at all. It tuns. 5 maybe 6 years ago it wouldn't start, I thought it was the starter, took it off and it bench tested fine, the problem was most likely in the ignition. Starter is still off. Engine is really weak, needs a rebuild. 331 that came from a '53 convertible. some other parts from the 53 and a 58 eldo.