The ad doesn't say anything about originality, other than the car was originally an auto, so who knows how it was originally equipped. In any case, I'm loving the red-on-red bench seat 4-speed look with the multiplex, PW, etc. Really neat car.
That cruise control actuator on the core support is insane! Doesn't seem like a great idea decoupling the actuator from the engine...but I guess that was how it was done on the accessory kit.
Link to 1965 Impala 396 Convertible auction