This opens a big can of worms. Unfortunately the value of the 1st gens is to the point you can buy one running cheaper than doing a restoration. The 83’s and early 84’s had an issue of losing 2nd gear, I’d definitely make sure the vin is a post correction bike before sinking cash in it. Hopefully @skydoc_17 @Marcarland some other 1st gen guys see this and chime in on recommendations.
That being said there’s no bike on the road more fun to ride than a 1st gen that’s road ready.