This time though I knew what short cuts to take to access the motor, so tackled it as the villain, correctly I think too as it had a layer of corrosion on the iron bits that I think arranged itself into a formation causing it to jam way too often.
I gave it a clean and whacked a bit of fresh grease on the bits that like that sort of thing, bolted it back together and even replaced the zip tie that I had to cut to dismantle it. The whole job was fairly quick and not having to spend real money has left me in a good mood.
End result is it works like a charm but be warned the magnetron runs on voltages that are very high ~4000 Volts, this can be quite fatal and shorting out the capacitor that feeds it before doing anything is advised, though waiting a while should suffice as they do have a shorting resistor to slowly drop the stored energy in the capacitor.
The other life prolonged recently is mine, good or bad.
The arm bruises are only from the specified blunt needles used for draining blood, I'm not actually a drug addict.
I can now understand if I hear of people dying from a stomach ulcer, mine was intestine and you just don't know you're bleeding, even after you pass out.