Brian, yeah the AC was originally there and vents out through a vented side panel behind it. You can see the vents in the picture with my daughter. The cabinet is covered in waterproofing, fitted for a window AC and Mike (who builds the GTRVs in Sebastopol) recommended I just replace it myself.
Thanks Carring. I've never done an axle conversion myself. I am a DIYer, but not the most mechanically experienced, so I'm hesitant to jump right in. I feel comfortable handling lift kits since they are generally fairly easy even for mechanical noobs like me.
Do you have any more info on axle conversions?
Dave, I did email Ujoint about his partial 4x4 conversion, how much it would cost, but haven't heard back from him yet. If I had the money right now, I would probably go with either his or Agile 4x4 or Quadvan.