You may want to read this thread for more mod ideas:
http://www.thorforums.com/forums/f27...-3-go-820.html
To make connecting up to the dump valves/assembly easier I just put a clear 90 on, then the hose just exits straight down out of the existing hole. I do have to remove the 90 to get the cover back on but I just leave the 90 in that compartment.
I've also upgraded the radio:
http://www.thorforums.com/forums/f27...rade-1105.html