You are just about out of luck.
Airstream did not make a side radiator model, ---- EXCEPT FOR THE LEGACY ON THE SPARTAN CHASSIS. But the Legacy is built on the lighter Chassis and has much lighter specs than the later Airstream Flat Front models.
I would not get hung up on that issue. You get a large side compartment on the Airstream motorhomes that you will not get on the side rad models.
See my thread on Class A Motorhomes Available.
See also, the thread "Rebirth of the Airstream Class A"
and be sure to put down your wants and desires so that it will be included in the new model Airstream Class A coming soon?
Originally Posted by kb0zke
After two years of research, we've narrowed our focus to diesel pushers. We want an air bag suspension, side radiator, and diesel-powered generator. Yesterday we looked at a 96 Land Yacht which lacked all three major items. What models should we look at? Brand of engine is not critical. There are other areas that might be of concern, but for now, which Airstream DP models will have those three features?