Delmo's offset rear bumper

[concretekiller]

Was hoping Mr Delmo or some of his close friends could chime in on this one. Planning on doing the same to a rear bumper I just bought as he did to a 60-66 rear bumper, but I can't find any pics or info on it. The one where the plate was, I believe, moved towards the passenger side (I may move it to the drivers side, so I'm not COMPLETELY mimicking your work) . Just have 2 questions;

1. Were you still able to use all 4 mounting points?
2. Were you able to use the rock guards on top as well?

I promise I used the search function, but nothing came up relating to what I was looking for.