Did some more playing last night. Thinking I can remove the top section of the dash stack, it just contains the clock and some idiot light for the passenger airbag. That gains me almost exactly a 1 DIN area. I'd just need to design a cover/pod and bezel.

Any ideas if there are round buttons that would work, like the EMPEG mark 1 had? Would make designing a new lens and bezel a lot easier.