Steve, ditto on no-rubber on the gas pedal. And yes, the Cars' car had the right turn signal switch, but yes had painted over the end cap on the horn switch: The difference between the MGB (Lucas 35874) and the Maserati/Goose (35874A) was the round end plastic vs. squared off horn knob. Repros for the metal end cap are available, but they won't work on a Goose. The long tapered cone on the Maserati/Goose horn button is something I haven't found on any other car...lord knows I've looked!
Records on the engine supply are in the hands of Vito now...His last words were that some engines were bought from Iso Rivolta. Looking forward someday to his book...I am much more interested in the storyline of the Goose than I am the particulars of my own car! Since the day I was looking for key build info and wanted to know where the engine fans came from, only to see it in Italian script specified as "white and yellow.." 
https://pantera.infopop.cc/top...for-phillippe?page=2
The PMI repro valve cover emblems are pretty darn good, so good that even real takeoffs from Mangustas sit unpurchased on Ebay....Repro valve covers are cheap too, already painted, no dents, of course without the throttle spring tab. So unfortunate, now the car has a Ford engine, not one of those rare DeTomaso engines 
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I am curious if the heater valves (the Alfa Giulia valves on left/right of the engine bay) were not installed on later cars...? Hard to see them in Denis' car there as well...Lee
Drivers' side view from 1046 attached;
