Hello, I just picked these up recently for pretty cheap and need help to identify the models. I knownthey are 500 series machines and the one that came with the large head is older. Also the other one looks like a 505 but does not say 505 and came with a head and same style belt liter as the more complete one. The one with the handle has the switch in the handle but it has a Crack and the wires are torn inside and I was wondering if that can be fixed or what. Also I need a base plate for the larger head it seems to be missing. Any help with models or help with repairing would be great thanks.
