I have never built my own. But I have a neck coming and this body is very tempting.
What drilling would still have to be done?
Holes to mount the bridge.
Holes for control plate or pickguard screws?
Holes for mounting the pickups?
Is there really a route there for the ground wire to the bridge? I can't see it in any of the pictures.
How would a newb like myself get the bridge mounting holes drilled? I have a drill press and know how to use it.

But, I don't see any easy, obvious way to figure out exactly where to drill and make sure the bridge ends up in the right place and square.
If this were just a matter of screwing things together and doing some soldering, I'd be a lot more interested.