It all depends on the dealer and the shop doing the expediting for the dealer. Yes, there are powered, non-powered, pop-up, spoiler, in-roof, and now there's even panaramic roofs. It use to be 10-15 years ago that the only kind of roof in the aftermarket world was non-powered pop up. That's obviously not the case anymore.Mine has the factory fitted one which is great. The factory ones are fitted on the assembly line if I'm not mistaken and all the wires are neatly hidden. Usually aftermarket ones aren't powered.
As worknitro says, make sure they are reputable, even if they are fully insured it's still a big hassle if it leaks.