I work in a shop that installs aftermarket power moonroofs. We install Webasto/Hollandia, do a google search and see who installs them in your area, they have recommended installers. The process involves removing the upper interior trim panels and headliner, installing the moonroof, modifying and recovering the existing headliner and then reinstalling them. Prices may very, my shop is the only one in our area and we get around $1500 which is closer to the high end. I would definitely encourage you to research various roofs.