Hey Barry.
I'm finally checking back in. I'd been sick[er than usual] for about a week.
EBAY GRIPE ALERT:
I never look at the eBay threads, as I've had some serious disputes with them & a few disreputable sellers, & eBay seems to protect sellers (especially high volume sellers) a WHOLE lot better than they do buyers. They were no help to me AT ALL on 1 downright fraud dispute, 2 SNAD (significantly not as described) disputes, & 2 libelous feedback comments posted by one of those sellers. While I still have my eBay I.D., I quit buying from eBay more than 2 years ago after they refused to remove those false feedback comments, & I won't use them until they're gone.
Caveat Emptor to the max.
THAT SAID:
First, I really like those knurled speed knobs. My U 70 has smooth [gold] knobs--nowhere near as cool as the knurled ones.
How can I help?
Those pics are scary looking to me. I hope I'm wrong, but it looks like it was drilled for a Floyd before whoever modified it realized he'd have to rout out the trem cavity to get more relief for the Floyd.
Then it looks like he put on a Str@ trem (without considering the string spacing), & "U"s aren't spaced that wide. That would have resulted in wood tear-out because the Str@ trem screws wouldn't have lined up with the U trem screws, & the screws would eat into the wood between the original U trem holes & not hold very well.
I can't tell if that light area is from putty or filler (to give the trem screw threads something to grab onto--which probably also explains the mix & match screws)--or if maybe the paint just peeled down to the primer.
I expect you're going to have a hard-tail project, unless you want to undertake major surgery--& even then, I'd still consider turning it into a hard-tail (with maybe a new coat of paint).
I don't know what you have in mind, but if I were working on this one (& the trem screw area is indeed shot), I'd look around in rummage shops for a cool-looking (& cheap) piece of metalwork (or cut my own) big enough to cover the trem area & work with that to maybe do a variation of the tailpiece like the one on the Paul Stanley model Washburn--maybe not (maybe something with a Billy Gibbons kind of vibe). The extra mass would help sustain, & a big enough piece of metal would reach to good wood for better resonance.
Let me know what direction you want to go in & how involved a project you want to undertake--I have all kinds of crazy ideas.