we visited can am when we first considered a trailer, they suggested that our ford windstar that we then had could tow a 24 ft airstream(4000 lb dry), but that was way beyond our pocket book!! can am is only as hour away from us
we wound up with a 19 ft flat sided trailer. the poor ford could barely drag it up a decent hill.
but engines and transmissions have come a long way since our windstar, it was grossly underpowered and the 4 speed automatic needed another gear between 3 and 4th. similar experience with the next combination, Dakota/22ft flat sided trailer, not enough engine/transmission
I saw a picture of a very similar ford/3 axle airstream on the canam website in a picture of new Brunswick Canada(hartland covered bridge), it was going up a short very steep grade, I know the area well.
not for me, we do like our heavy solid ram 1500, towing well under its rated payload capacity, our flat sided trailer has a lot more drag than their airstreams but fuel economy is still near their numbers
I would be concerned with wear and tear on the tv, especially chassis components. elaborate suspension systems are expensive especially to repair and how long is a highly tuned small engine going to last when producing high power levels for long periods of time. we opted for a v8 rather than a turbo 6 for example for that reason