This is how I treat my M code RR. (I know it doesn't look like an M code RR but it is)
It is not restored but I will drive it the same even after I restore it. I believe you should drive them like they were meant to be driven.
I have 2 other 69 RR's and they both get raced often and hard. This RR runs 12.50's with sticky street tires and exhaust.
Have Fun with your car and enjoy it.
David