After the paint is all gone, start cleaning the ways with a solvent to break up the grime, I'd use a stiff bristle brush and rags. Going to have to work separate areas of the way, with the knee in different locations up or down, then I would flush the back of the knee as best you can to get any crappie that resides behind the bearing, may even goes as far as to remove the knee to get all the paint out from behind it so as not to cause further unnecessary wear.
I don't know why it would be hard to get the belts, just measure out the one you have, and measure out the one you need, Google how to properly do so
You could swap to link type belts and make your own length as needed
Ok Thanks... sounds like a good start. I go back in Saturday to do some R&D, so I will be able to work this some more.