[penman]

Hi
There have, over the years, been such drawings of many Bristol models, they have been reproduced in the various Car magazines and books carrying articles about the cars.
The Brooklands book and the Oxley Books certainly have them and I think the Setright books do as well.
They presumably came from Bristol Cars so maybe those originals are still available, either at Bristol or possibly in the Heritage Trust Archives, to have copies made.
I know they will not have your own registration number but maybe they could be personalised.