You've come light-years with it cosmetically. Good show!
The main light switch is reliable, uber-funky and expensive at over $200. The mounting tabs are quaint and do break if you're not careful. I've had my board out 4-5 times the last 39 years and I fear that the tabs may go south the next time-- I'm looking at fabricating some sort of bolt-on adapter for the board.
Look at Duane Ausherman's website-- it is /2 related, but has many /5 items of interest. Like the switch board care&feeding.
You've got a few wiring issues to be sorted out. Nothing major, just tedious. If the main harness is in sad shape, you might want to consider replacing it. At a current price of $70-ish it's a bargain and a candidate for a big price jump.
Otherwise, keep chipping away-- there's a motorcycle in there. And keep posting...