IDJ, From the pics you post of whats going on at work, retros would be cake work for you. It really is one of those things where you need to make a round block fit in a square hole. Use a dremel to make the shroud fit, then use a dremel to make room on the back of the light for the projector to bolt down. Once I did the first headlight I was able to get the second headlight done in about an hour (done to the point it needed aiming).