Window motor removal?

[Skunksmash]

Replacing the power window motor in 87. Is it necessary to take the regulator all the way out? Or can it be done leaving the regulator in? Passenger side finally quit working and I got the door panel off. Struggled for a bit, then thought I'd better ask.

And even if you don't have to take the regulator out, is this replacement usually a huge pain? Perhaps I would be better off taking it somewhere for this. Trying to feel my way around though those holes in the door seems like it might get pretty frustrating.