Just in case someone else has to do this I thought I'd update.

Removal of the original sunroof was a breeze, took about 5 minutes. With car running open the sunroof enough to get to the retaining clips in front. Remove plastic covers and remove nuts underneath. The clips will then slide out without too much difficulty. Then close the sunroof and remove two torx screws. Then the roof will lift out from the top.

Replacement took a bit more patience. Place the new sunroof in the opening and replace the (2) Torx screws. Carefully open the sunroof to expose the area where the retaining clips go. Then pry up on the rails while feeding the clips back into place, this may take several tries and a few choice words

Once the clips are in place I made sure that the rubber moldings were not crimped and then replaced the nuts and plastic covers. All in all it was done by a newbie in a couple hours.