I see these fitting like a round peg in a square hole. The area between the light and the Crossfire body will act like a trap for road dirt and grit. That area has to be filled and filled neatly and smoothly to the front facia just like the OEM lights do.
I have an idea how to fix the broken glass. The member who was going to solve the problem with a new glass lens has been MIA for a long time now. I should resurrect that thread and see where and why it died.
Edit
The post was about glass headlight lenses, big bucks but no specific number, it just died.