I was able to fix one problem, the window and picture shrink when moving further away and grow to the proper size when moving close. I had to increase the field of view from 1 degree to 5 degrees to make it work but the problem was fixed. I also made the little visible area fade to black when the camera got too far away.
I still haven’t figured out how to solve the other two problems though, so please if anyone has any idea how to reverse the direction the bump offset shifts the UV or how to increase the amount it moves I would greatly appreciate it.