Out of curiosity I called them wanting to get a general idea of price. It was 4:50 when I called and wouldn't you know it? They close at 4:30 I hope to try again tomorrow.
I note that they also do customs so it is possible that they can make what I would want, maximized departure angle and clearance for the "wing panels" on the rear of our Phoenix. I guess worst case the camper could be modified to remove those. What a custom does to the price will be interesting.