I bought a hard shell case off craigslist, and the kid that sold it to me had a Mexi jazz in there that was in absolutely deplorable condition. Completely rusted out, finish beaten up, the works. He said he wasn't playing anymore and said I could have the bass for another $20, so why not? Haha Long story short, I thought of it as a trial and error kind of bass that I know I would never play out. I cleaned up the bridge and pickups and got it back functional. Then my friend had the idea to make a DIY fretless, so we ripped the frets out, filled, an stained the neck and it's actually a pretty decent playing fretless now. Still not a gigging bass though. I also sanded the finish down and I guess "relic'd" it. It was already beaten. Not relic'd. I know that word brings the masses of people who hate faux-roadworn stuff, but that's not what this is about. My question is: Since I've already sanded all the clear off, as well as went down even further where there was significant finish blems when I got it, what would I need to do to spray this with some Gracey's Nitro and change the color? I know that if you rough up the existing poly finish, it makes for a good primer for spraying rattle can nitro as a fun little project (At least from what I've read). Not sure how it would apply since some of the paint is completely gone in spots here. I was thinking of filling the dings with automotive putty and sanding it flat, then spraying the nitro. I have zero desire to strip it clean and start fresh. This is just for a fun experimental project. Any recommendations? I have attached pics so you guys can see the current sandings of the body. Again, this is no more than a bedroom fretless to get a point across. Maybe if I can refinish it successfully, it may see a stage somewhere. Thanks.