Update: I strung it up and played it! Woo! It's a guitar! I built a guitar! Woo!
Okay, so now that that's out of the way... I had to raise the bridge even more to get the action right. The bridge is just so high; it looks silly to me. And I do worry about the leverage on the studs. (I'll take another pic when I get a chance, but there's at least 1 more thread visible now.)
@Andyjr1515 Interesting idea about swapping to a ToM. Unfortunately, I can't find a bridge with the proper spacing. My wrap bridge is 82mm post spacing, and every ToM I can find is more like 74mm. I sooo don't want to dowel and re-drill.
I can think of two options...
It seems like there's enough space to make a Gretsch-like "bridge base". Basically just a piece that screws down to the body of the guitar, and the ToM posts screw into it. Maybe kinda out of place on a solid body electric, but it's an option.
Or, I could get some locking studs to secure the existing wraparound bridge in place, and then just pretend it was a ToM. I could notch the "saddles" and add a tailpiece. Seems weird, but maybe could work?