I second the motion for pictures!
I have an original 1961 (series 2) RHD 7 and need a new rollover bar since the original was cut off many years ago. I was looking at the Caterham website and the trackday with Petty strut is an option if the S3 dims are similar to an original S2 , and also there is a guy on the locost forum that makes a kit (they do the bends, you cut to size and weld). I want the older style where the main hoop sides are parallel, not the later Caterham style that tapers in. So any pics would help be land on a direction,.
Thanks All! Mark