Our "Driver Evaluation" at the VA was really quick. My PALS rolled into the office in her wheelchair and the VA guy said, "Yup, you're disabled. Approved."
Our dealer specialized in modified vans. She delivered a different model to our house each day for a week, and we would roll into it, lock in place, and check it out for fit. The dealer knew all the rules and all the people to deal with, and we just signed papers and drove away with a brand new Braun modified Honda Odyssey. We left our car as a trade in.
When I no longer had a need for the van, I sold it here on this forum at an unbelievably discounted price. Somebody made out big time, and we both appreciate the American taxpayer for taking care of us when we needed the help.