You can buy high quality reproductions of the bridge and tuners for 1/6th the price of the originals. There's no point in paying crazy money for vintage parts when they're going on a refinished bass. The refin pretty much permanently spoils the collectability. In fact, unless the tuners and bridge are nonfunctional eyesores, it's probably best to leave them alone.
Sinking money into a refin of a refin is also folly. You're buying a bass at market value, sinking $400 into refinishing it, and ending up with not increasing the value of the bass one dime. There's also a widely held view that refinishing a bass changes the tone of the instrument. Unless the existing paint job is atrocious, or you hate the color, it's best to leave it there.
If this bass is light, plays and sounds great, there really isn't any justification for making any changes to it. Especially if you're paying over top dollar for it.