"Hands on demonstration"
You played with yourself until they cried uncle and promised to buy them? Hell'uv a sales technique. I'm not sure Bob and the staff will want to adopt your approach though.
The Kirkhams are doing several things--including notching the passenger side of the rear wheel well--which I believe Kris says Shelby does anyway. If he's tall--getting rid of the seat adjusters and taking some of the padding out of the bottom cushion are the big helpers. There's enough play in the pedal assembly and the steering column to gain an inch or so on each.