Roger,
Help me out here. I am seeing your fuel fill door just behind your roadside steer tire. I am seeing your water service bay just in front of your roadside dual rear wheel. Unless I am mistaken, it would be hard to do what you did since the fuel tank appears to be in the front and the gravity fill appears to be near the rear. Is your coach of a different design that this setup I found? And yes I realize that I am looking at a later year coach than yours. Do you have some other type of fuel fill in your water service bay area or is your fuel tank near the rear instead of being near the front?
http://en.visonerv.com/cgi-bin/md/M12126/s40.pl