Task Force Dan, there is a guy in Placerville that does this kind of work.............He re-wound my 6 volt generator to 12V, all I had to do was get a 12V regulator, battery and bulbs,etc. It was re-brushed and re-bushed at the same time. I don't remember how much it was; but I never had any trouble with it.
Jerry's Generator Service
3102 Blairs Lane
Placerville, CA 95667
(530)622-6257