I'm kinda proud of them actually. I was real apprehensive about cutting into a prefect original bumper, but the holes themselves are perfectly round and same exact measurements end to end, top to bottom.
As one of the other board members advised "take your time and check measurement, a lot", could not have been better.
Tomorrow I'll get the mounts made and the wiring hooked up.
I'm going to look at recessing them just a little, depending on how they aim.