Chassis work looks nice Dave! I'm following your thread to see the final product.
I received an order for a shallow depth DIN and a half chassis from a member here named Ross. Its a special order and just wanted to share the design we came up with. The IO ports from the mobo are going to exit on the side of the chassis for clearance issues in his vehicle.
Also these are the outer chassis dimensions of an OEM DIN 1.5 opening.