OK, its just been pointed out to me, by someone much smarter than myself, that the interior photo above that I guessed to be Follmer's car, is in fact chassis 777.

Chassis 777 is the only one of the three 1970 Bud Moore cars to feature a staggered dash cluster, whereas 775 and 776 both featured their dials all in a row.

My thanks to the person who pointed this out, and who wishes to remain anonymous.