I am trying to fit my bubble doors to my model IV door frame. The door frame has a lot of rivet holes from the previoulsy installed aluminum sheeting and plexiglass windows that have been since removed. I am drilling out holes in the frame to install rivnuts; although, some of my drilled holes "rivnuts" are not top center of my "round" door frames. They shoot off to the out side of the curvature of the tubes just a tad on some. My question is if my screws are not perfectly perpendicular to the bubble doors will that be a problem? IMG_2094.jpg