I have the same Carrera 3.0, 76 Targa in Silver Metallic. Same as you, I know what I have
Side by side with my SC, this car is amazing! The engine spins up effortless and has a nice torque band... it's got a lighter chassis and a few extra ponies. With the top off, it's a sweet ride. Top on, just as nice.
The car is not for sale. It'd be good to start getting some
recent notable sold data on the 76-77 Carrera 3.0 cars.