1975 911s Rare Bitter Chocolate color very original # matching

All books and Porsche COA which confirms that the car is all original !
VIN 9115201392
Long form model 1975 911S Coupe
Production Date: Information Not Available
MSRP: Information Not Available
Engine Type: 6451339
Transmission Type: 152504
Body Color: Bitter Chocolate (Chocolate Brown)/T3
Interior Color: Cinnamon Leatherette/31
Option Code 1: C02
Option Code 1 Description: US Equipment
Option Code 2: 442
Option Code 2 Description: Antenna w/ Loudspeaker & Noise Suppression
Option Code 3: 481
Option Code 3 Description 5 Speed Transmission
Option code 4: 650
Option code 4 description Electric Sunroof
Option code 5 description Dunlop Tires
It drives amazing !!! Just had a full service incl valve adjustment no underbody rust (the car had Ziebart rust prevention treatment there are just a few bubbles near the fuel filler see pics)
Paint looks original but some panels have been resprayed a few stonechips have been touched up.
Air-conditioning works and blows cold ...All gauges work but have a quirk and there is a ground short somewhere as the charging light lights up but the alternator produces 14V
I'm including a new alternator and a new speedo cable as the installed one clicks between 30MPH and about 50MPH
The paperwork indicates the the motor has been rebuilt at 80374 miles in 1984
I bought the car out of a large collection and believe that it only has 104000 miles but can not verify this
The electric roof works but should get a new rear seal....
A few little things for the new owner to fix but nothing major I drove the car in the Carolina mountains and it drives amazing....just beautiful