Ford Mustang

1965 Ford Mustang, 2 door coupe, 4 barrel 302 V8 engine.
-Interior redone w/ red and white leather
-Paint pearlescent white w/ red racing stripes
-Body panels with rust were replaced
-Installed traction bars to prevent rear axle from rotating when pressing hard on the throttle
-New radiator/hoses/fan
-Front brakes upgraded to disk brakes & vacuum boosted, dual reservoir master cylinder installed
-Replaced all engine gaskets (except head gaskets), painted the water pump, oil pan & cable covers
-Transmission was rebuilt; rear end ratio is 3:1 is limited slip & was also rebuilt
-New heater core
-New voltage regulator
-Engine/mechanical/lights/blinkers/ brake lights work great
-Need to hook up fog lights/corral backlight/dashboard lighting/radio. Painters took apart the electrical system and I couldn't get those things working again
-The speedometer fluctuates back and forth around the speed it actually is. I installed a new speedometer but it still does those oscillations.
-Clean title in hand; driven every weekend; kept in a garage
-Video link of working lights/car: https://youtube.com/shorts/Tn9jdNjz0zE

-Recent development - I found that the battery wasn't charging, the alternator and battery were tested and found to be good. I replaced the voltage regulator as well. Narrowed it down that a wire must be broken somewhere along the circuit. I have a new wiring harness but i will sell as is. I will keep the battery in good health with a wall charging set and give you the harness upon sale of the car.
-The buyer will have to deal with transporting the car and paying the transport agent.