I really like the look of that top. Hopefully it's a bit thicker veneer than the ones with flame maple. I'd be tempted to try to do something with it if the veneer on the top is like the veneer on the back... I have asked a number of times about that. What a bummer that you got one...and it's missing some holes!

I have drilled bridge post holes in two ES type basses. In both cases I (a) rigged a jig to hold everything in place, and (b) had the neck fastened in place (glued in one case, bolted on in the other). I used nylon strings, and had the high and the low string in place to mark where the bridge went. It can be done, but you have to go very slowly and carefully. If you feel like attempting it, I'll send you my build diary entry.

I agree with Simon, though, about seeing whether you can get a replacement first...in spite of how much I like the grain on that top.