Hello Rick,
Thanks for posting the pic of your frame.
Originally, I was going to fabricate a chassis and had planned to source some wheels and springs etc. from the Rolls- Royce Foundation (USA) where I volunteer one day a month. Then I located the R-R chassis I subsequently acquired. There was a Phantom P1 drive train in it, but the owner already had a buyer for it. Regardless, the P1 engine is quite different from the motor that was fitted to the RRACs, so it was never really a serious option.
Once word began to spread of my build in R-R circles, people began to contact me and