It can be done. Back in 2000, my other half and I started out in a new 34ft Monaco LaPalma motorhome. We were in an RV park in Scottsdale for several years, due to a local contracted employment situation. We became good friends with several other full time couples in the park. We all had motorhomes with dual pane windows, 50amp, 2 air conditioners. Having the awning down whenever possible is a must. There was a little bit of shade from a few trees, which helped also.
Large windows are a killer in the desert heat/sun. The fewer and smaller...the better. Dual panes....are a must.
