That’s a good point about it being a factory option...
My car has just had a new front and a set of door skins so I’m trying to work out the best order of doing things. Seems that it might be easier to get the car painted and then fit it (risking the installer marking the new paint) or I risk my painter getting overspray or messing up the roof. Not sure which is highest or lowest probability.
If anyone has a pic of what the factory switchgear looks like that would be great. Presume it’s just a Rover black plastic switch held in a housing above the rear mirror?
I'd have the roof cut and the frame installed, then painted, then fabric fitted. The fitter will be careful not to mark your paint, or else be responsible for repainting it!