Sorry about the crummy cell phone pics, I gotta start bringing my "real" camera with me places.
so I finally had some time to futz with this (and partly just had too much fun playing it to take it apart)
I was wondering what the hole next to the bridge was, it looks like someone used a screwdriver to make the hole for the ground wire. Also the pup routes are pretty clean (the hole itself, there's tons of ...I don't know what, but I gotta clean it out pronto. I thought it might be buffing stuff, but there's none in the control cavity or the front pup hole.) There was a hole above the bridge pup hole. I thought maybe a Jazz-style pup route got enlarged to put these humbuckers in, but they both look too clean to be anything other than stock. The hole I saw was because the black plate around the pup wasn't cut big enough to cover the route hole.
I got a real J style control plate (OK it's from another copy, but it's better than what I had) you can see how much bigger that is than what mine came with (plus it's actually made of metal and has better components.
You can see how dark the finish got over the last 30 years. It's nice ash-looking wood, the grain looks really nice(too bad most of it's under the guard plate) I'm having a hard time not sanding it all down (there's like 80 million scratches and dings on here) and just Tru-Oiling the whole thing, but I know if I do that it'll be a loooong time before it's all back in one piece again. Plus I kind of like the orangy color it's darkened to.
Oh yeah, it's definitely not the same shape as a "real" Jazz, here's a Fender guardplate sitting on top of it.
(Ask at the store for used parts enough, and they'll let you pick thru them. Or ask me not to come back...) The neck is totally squared off on the end, and since I've never had a "real" Jazz, I didn't know those were rounded. Not like I want to make mine just like a real one, there are tons of those around. Mine is different, I think it sounds cool and I just plan on making it better than it was, not a more exact copy of a bass that there are thousands of them around. Besides if I was gonna change it more, I'd be buying new parts for it, not rooting around in people's spares bins...