Looks like this one could be a rough driver with some work, namely a new clutch. It's supposed to have an original drivetrain except for the carb and headers.
Nice docs, too - POP, and the dealer invoice from Carl Schmidt in Maumee, OH.
I'll be watching, but I suspect the seller is looking for something in the $15k range.
Link to 1970 Olds W-31 auction
338670M211086