I noticed that link didn't work
here is a place on E-bay that has allot of options
http://stores.ebay.com/RV-Parts-Accessorie...7QQftidZ2QQtZkm
This is like the unit I went with
http://cgi.ebay.com/ebaymotors/CARRIER-150...emZ140217075402
it has the heater as well
one note, you'll need a 30 amp breaker at your circuit panel, as these Wekeend Warriors come Per wired, they dont wire that wire up near that roof vent which is where this unit goes. so when you look in your circuit panel, you have to cut out one of the knock outs and install a new 30 amp breaker, TRUST ME ITS EASY, just look how they wired there's and do it the same. I got my circuit breaker at Lowes it was like $10 or so, other than wire it in at the new AC units once you get on the roof, I straped mine and raised it right up the front BY MYSELF.. well the wife had to guide it until it got past the 5th wheel part, but other than that .... was easy
you can PM me if you have any more questions