Projectors are a pretty basic install, in terms of what acutally needs to be done. Just takes a while. Here are some tips I can offer for doin the mod:
1. Get quality projectors and bulbs. Not all projectors are made equal. BMW and Audi make the best ones. They have the best beam cut-off pattern, and widest light coverage. You can use other lesser expensive projectors, but a t the cost of light output. Also make sure the bulbs and ballasts are quality, because it can be a ***** to remove burned out bulbs.
2. Do it right the first time. Don't cut corners, it will cost you in the end.
3. When removing the plastic lens cover, heat oven to no more than 275. You will toast your whole light, TRUST ME!
4. Mounting the projector is simple, but you will ned to get creative on how to securley hold it in place.
5. Try to seal it as best as you can. Try to make it waterproof. HID's don't react well to moisture.
6. Plan on taking at least one whole day. (i.e. 24 hrs.)
Hope this helps.
Peace