I Pm'D the op and will reiterate:
If someone is willing to pay for the work, has the rebuild parts they want installed, and wants to ship it to me, I'll do the work. I did a complete rebuild on mine, including disassembly of every single part and can provide pics of mine.
My build consisted of:
-NOS main handlebars
-covers nickel plated by Mike Chestnut
-NOS grips
-NOS/repro gears, pots, bronze bushings, springs
-housing weld repaired
-stainless cover screws
-refinish upper and lower housings in satin oil based black
So I know first hand what a PITA rebuilding the controller assy is and how much time is involved.
Having the handlebars nickel plated is an option, as Mike Chestnut will do this. PM me if interested.