A smidge of progress today and one more minor setback.
I've essentially fixed the problem with the heater ductwork not fitting the connectors. I chopped the front of the box off and made it wider. Now the connectors fit through.
Here's a photo of the box installed in the car.
The white goo is silicon caulk. The two oval holes are where the hot exhaust from the Mini go down and then towards you, then out either side of that off center plexi box. It's off center because of that metal bracket on the left.
The dock will sit on top of the white caulk if all goes well.
Minor setback is that I trimmed my VGA cable down to a minimum and must have cut one of the wires in it as when I went to test it, got no signal to the monitor. I tried it on my desktop PC and got the same results. I'll check it with my multimeter and see if it can be fixed. Otherwise, I'm going to make my own. That cable cost $20 &$%!ng dollars and it's my second one.
I should have gone with my instincts and ordered a DVI-VGA cable right away, but I didn't and now it's too late.
Otherwise, the Mini docked up beautifully again and IF I can ever get the install right, it's gonna work great!