Duffer, do yourself a favor. These bikes are becoming rare and as stated are climbing in value. The tail light thing, very cool. Matching the paint, great idea. Don't do anything too that bike that takes it to far from original. Collect and properly store stock parts. Down the road if you ever decide to move on, your return will be plentiful. This has always been my process. Being able to have a hobby that pays for itself adds to the joys of this hobby. Not many get the chance you've received to get a bike that complete and desirable for a bargain price.
A lot of guys on here have taken what was a fairly undesirable bike and made art of it. You've had a piece of art handed to you, and bone stock gathers crowds (I know, I've owned several) and I'm jealous A/F. That bike is a blast and you've many great days coming on that steed.... As soon as that bike came out, everybody I knew got over Hondaitis quickly. That was the bike to have. By todays standards a little tame, but back in the day it was considered a beast. Good luck, you sir are a lucky man...