Sorry, I guess I did not clearly explain what I am trying to do. The CR does not have the recessed well in the body (as pictured) in the fender. Classic Roadsters suggested just mounting the gas cap through the rear deck behind the seats/cockpit. Or mount it at the top edge of the fender. Most of the 427 replicas have a recess in the fender for the Le Mans cap system to mount as pictured in my first post. It would be mounted like the 289 FIA below.
