Taaadaaa! Took the plunge. Airbags on the Class A

MrWizzard, your drill bits are dull. That frame material is mild steel and should drill easily. Go buy a couple of new drill bits of the correct size and drill at slow speed. First drill through the new fixture with the correct size bit to make a small mark for the pilot bit to center on. Then drill the pilot hole and the final hole. I drilled my frame with a cordless drill motor with no problem.

Richard