If you end up deciding to repaint, get ALL of the decals IN HAND before you do anything. We occasionally see postings "I just painted my xxx and I need to find decals". That is way too late. There were lot of versions of Centurion decals over the years, and lots of versions of the Lemans too. You have one chance to know exactly which decals it needs, and where they are placed.

And after going through the headache of finding all of the right decals, and seeing the cost, you may just decide keeping it original is a better option.

On bike repairs, find a CO-OP. Bikes used a lot of specialty tools, to do a complete rehab will take several of them. You can avoid the tool expense entirely and also get some good advice from volunteer mechanics.