Mine was a disaster. I bought MDF from HD and just used the old one as a template. WRT the curves, I tried to soak it a bit in water but it would not budge, I believe I bought the thinnest they had. I over-sized those curves/ears, then scored the MDF to get it to curve. Once done, a thin layer of JB Weld along the scored line. Then added new foam. Came out pretty good. There are two prongs on each side of the roof that this fits into to hold, a cross member in the roof and then screws along the back window edge where I used some fasteners like the ones for the door cards. Sadly, took no pics.