That's an excellent price. A lot of the clean up you can probably do yourself following Billy's tutorials on the vintage machine part of this board. Probably the biggest thing is to check the cords incase they are broken, frayed, cracked or rotting. No one wants to get shocked over ancient defective wiring. I'd clean it up, check the wiring and then plug it in for a trial. If it is clean, oiled and lubricated and running quietly making a decent stitch you may not need any more for now.