A side view of the main dash cover with the iPad template behind it.
Approximate location inside the dash. I would have to both cut and fabricate a holder to fit inside.
Side view shows no major clearance problems behind the desired install location.
A little looking around at Lowe's revealed aluminum U-channel that I fabricated into a frame that the iPad could slide into. The channel is wider than the iPad, leaving it to rattle around in there. That was good, because I intended to use rivets to connect the metal pieces and would later line the track with felt to get the iPad to fit properly and protect it from being scratched by the rivet heads.
Here's an early test fit.
The next challenge was to put a dock connector in the bottom of the frame. Using aluminum was a good choice as I could easily drill, file, and even carve with a sharp exacto blade. Alignment was crucial, so I started by scanning the bottom of the iPad on my home scanner, printing it out and using the printout as a template to transfer to the frame.
I worked as carefully as I knew how and, using a dremel tool and then a file, took off little slivers until the connector fit firmly even without glue. I then bonded it in place using JB Weld expoxy.
The end result looked pretty good!