I bought the machine for $12 because the mechanics underneath were completed rusted and seized. No guarantees that it would ever sew another stitch. The flywheel didn't move one iota. But my fabulous grease monkey of a husband *tapped* it lovingly a few times with a hammer, loosened the crud, oiled the bageebees out of it, and viola!
Once we got everything freed up and sewing again, my husband stripped down the wooden case. It had been covered with a vinyl fabric and was in bad shape. He resurfaced the outside with some fiberglass resin to firm it up and sanded it down smooth. He sprayed it with a coat of gloss black paint and replaced the handle with one from a copper wash boiler. A metal latch on either side, and she's good to go.
We're proof that the time honored barter system is still an effective tool today! I'll knit your scarf; you stripe my sewing machine. What could be better?