Before installing/re-installing the frame, paint the exterior with a good grade of paint. I've had several fail over the years due to sun exposure. That, and I dislike seeing yellowing plastic.
I replaced our frosted glass with a clear unit not long after getting our new Sunseeker:
We had a bad blind spot with the frosted glass; and trying to depend on my co-pilot in the passenger seat was risky at times.
While parked, a simple mod with a modified pillow case obscures the view:
2016 Forest River Sunseeker 2250SLEC Chevrolet 6.0L