I have a 2012 qclb ram 2500 with airbags, we hauled a 26' enclosed trailer across the country east-west and north-south with a rzr 800 in the bed and two in the trailer, it had the rear of the truck on the bumpstops before adding air. I bought a much larger trailer so I'd not have to do that again.
I get that you're not driving a bunch but it sucks. I also don't think that 400lb of tongue weight is sufficient and you'll have a trailer wagging the truck around.
Either way, have you considered putting two tw200's or something similar on the back of a regular camper trailer?
:edit: or even better, the new honda monkey.
