Two years ago the guy from Phx that tagged along with us in the CJ got one on his way out from PHX, got it in Indio. It was Crusie America and he was very happy with it. Remember they charge for mileage so the closer to the Hammers the better. I posted a link below.
http://www.cruiseamerica.com
zman
Edit: noticed they are not on the drop down menu. Not sure what is going on but goole it as I know it was in Indio and should be on your way if your driving out again.