Hi. I know this is an old thread but I thought this could be a fun post with a happy ending
I a few years bought this exact same machine on ebay(serial numbers and crappy white paint job matched)
It was in the state as described in previous posts and I was a little bummed so i just let it sit a few years on the floor but during covid lockdowns I decided to give it some TLC.
I stripped it down to bare metal and repainted it. Serviced all the bearings or replaced them as needed as well as replacing most plastic knobs for metal ones.
Its now a lovely flawless running machine that should outlive me.
I attached a photo of its current state.