Kirk you're a fucking genius! Props to Hogan as well for the similar idea. I have a different idea that I'm going to try with a small piece of plywood that I'm going to customize with my router and some zip ties, which will be bolted into the bottom of my rack. Not quite as cool as Kirk's method, but I think it will work well for my application. I'll post pics when the device is ready.
I was thinking of doing the rack shelf thing but I'm low on funds and I think mounting the pedals directly to the bottom of the case might gain me a bit of clearance for knob twiddling should the need arise. I'm contemplating mounting them in the rear of the rack though so I don't take up any potential rack space.
Pics shall be posted soon.