Thanks AJ.
Regarding the frame, I didn't widen the gap as much as Collins says to, and then I assembled the bottom in the door. The slot for his frame has to be 7/8" longer on each end. I was going to complete the passenger side before I started the driver but now I think I'll move on and go get both sanded if needed. If not, no loss. I will be trimming the top cap angle on the frame to just barely cover the nut clearances on each end. That'll stop it from hanging over at the back. Collins design is good but it's still working within ffr's design.