[supereal]

Consider restoring them if they are complete. We hot tank them to get the rust and crud off, then disassemble them. Missing or damaged teeth are restored by welding them, then reshaping with a die grinder. Many vendors stock a kit for the crank gear and shaft. I used this approach over 20 years ago when I bought my '47 convertible. The open car regulators are very different than the closed car type, and it took me a year to find one for the right door. Someone had put a regulator from some kind of car in that side When I did find one, it was very expensive, and still needed to be rebuilt.