I do not count moonroofs as a conversion, especially if they were a factory option. Yes, car companies farm out parts of production to other companies for one reason or another, such as moonroof, sunroofs, and even special models. As mentioned, ASC handles most of the roof systems for many car companies and is responsible for entire convertible roof systems. The SSR and CLK come to mind. Sometimes plants can't handle the capacity, other times, it's easier to send the job out to a specialist and reduce the engineering burden for the OEM. Metalcrafters of MI handles many of Chrysler's show cars. My point is that the VII was never sent out by Ford for convertible conversion. The car has been relisted a few times. Other pictures not shown in this auction depict how obviously modified the rear seat area is. The rear seat bolsters are cut into, the glass is trimmed, and the third brake light is tacked on. Pictures of other chopped tops will show the same features. If you believe the car is factory, I have a one off four door I will sell to you for a steal.
GTCs are the only factory-authorized major conversions of any sort. If you can find the paperwork to prove otherwise, I and all the other VII nuts would love to see it.
