Glad that you managed to sort out the clutch problem. I must admit I had never heard of a 'potted motor' before, and having read on here enough about dodgy electrics I haven't even touched that part of the machine even though my son was eager to plug it in and try it out - I managed to stop him in time, although I think he was rather miffed. It is better to be safe than sorry with these old machines.
I just could not believe that this machine was in such excellent condition with gleaming chrome, and excellent decals. Like you I managed to get it stitching with turning the hand wheel, I have yet to try and get the treadle belt in place, and where I was trying this out in my rather large hallway the light in the middle of the winter was not good, but now with the light being so much better I will have another go. I wound the one metal bobbin that came with it on my Bernina, no way was I risking the electrics and not having used a treadle for something like 60 years that seemed like a lot of treadling to get a bobbin wound.
My machine actually tips over on itself and hangs below the table top, and I had forgotten just how heavy they are to lift up into position. Now I have heard that some people have changed over the machine itself and put a different one into a treadle cabinet or a treadle table, so if your machine shows it has keeping abilities, you could perhaps do something similar. My cabinet is in my hallway - colour and wood wise it doesn't really fit in, but there you go, when I was after a treadle a few years ago it was designated to go between my kitchen and dining room - well that has been filled up with an exercise bike. So it means whenever I want to play on this machine I will have to pull it out to use but that is really no hardship there are only two of us living here, with occasionally my grandson staying with us when my daughter is working abroad - so we can get around this problem. Just how can anyone send a beauty like your machine to the tip - you both did an excellent rescue with this.