I now have the screen, and the interior is coming out. So I'll get some cardboard and mock an overhead console, nothing fancy, just something to give me an idea on size.
In my last Elcamino, I had my midland CB radio, and a digital SWR meter in an overhead console I made. I think is was near dbl DIN in size and it looked great and didn't block my view.
I'll come back to this thread when I get the interior out in a few weeks.