I know nothing about motors, but can you rebuild it? Kenmoregal's husband learned how to do it when her Gritzer made Kenmore died. She was so upset, he learned to rebuild them.
That's a desirable cabinet that appears to be in great condition. I can't tell if that is tape on the bed or not, but if it can be removed without damaging the finish, I think you have a great machine once the motor is repaired/replaced. It would definitely be worth doing for myself. I'm not sure I would do it for resale, though. If you are willing to wait, I think you can get $250.00 for the machine, stool, accessories and cabinet (at least you could in DFW).
bkay