Hey Bud, I can't really remember if, or how i strengthened behind to support the gauges, probably blu-tac and sticky tape.
S'all good though, when i take the photo's i'll just remove the console and have a look, oh and take a few shots.
I remember trying to use the metal bit and mount them in the same area without cutting but it was gonna be more hassle than it was worth, and I'm really happy with the way it turned out. If you don't want to cut good interior parts, try and find and old sh%#ty one to cut and then cover it, keeping your good one aside.
Cheers, Richo.