Same deal for me but I can fall asleep in a hammock - it's more like a recliner than a bed. Could you sleep in a recliner?

I don't know about the windows on the roof - they are all different and kinda look like they were just stuck wherever...

I called delta and was able to get another tailpipe without the integrated drain but the threads were still short. Ended up using a spacer made from pvc to fill the gap and that seems to be working without an issue.