Hello all. New to the site and to the mustang world. Recently fell into an amazing deal on a '69 R-code mach 1. Couldn't pass it up. Car needs a total restoration but is very solid. 428 CJ and 4-speed transmission were long gone. I plan to do a full rotisserie restoration and to take it back to as original as possible. To make the car more enjoyable to drive I'd like to add 4-wheel power disc brakes, power steering and air conditioning. I'm not building the car for resale but to own it for a long time and enjoy it. My question is, would I be hurting the value by adding these features since it didn't come from the factory with them? Since I don't have the original motor and tranny it will never be a numbers matching car anyway. I have a marti report for it and it's the real deal.