I'm cleaning up a machine, just like that, for a friend and I used sewing machine oil on the finish. It doesn't seem to trap any dirt and makes it nice and black. Of course it wasn't that dirty to begin with so maybe I would have tried some diluted dishwashing detergent on it first. The chrome parts are also cleaning up nicely with some Maas metal polish.
ETA: I see these on Craigslist, quite often. If you like the case that comes with it it will probably be in a million pieces by the time it gets to you (it's really sad to open the box and be greeted by all of that splintered wood), unless the person sending it is REALLY experienced in shipping these types of machines/cases.
Last edited by cabbagepatchkid; 04-28-2012 at 05:43 AM.