I've started with some practical modifications. Added aluminum plate to cover the hole left by the OE interface. Mounted the display, keyboard and mouse on top of the console. Ideally the display would have mounted flat to the top of the console, but the display I have has some of its guts inside the base.
I was hoping to put the PC inside the console, as the cabinet is somewhat sealed from dust. Unfortunately I couldn't find anywhere it would fit, so I think I will mount it to the back or side of the console. My last CNCPC sat out in the open, and I never had any issues, although I did blow it out regularly.