It is a community service to post 'found vehicles' here on the Portal. That is why they have this thread. I have gotten two great deals from items being listed on the Portal, so I try and return the favor (pass it forward) by posting cool things / great deals I find.
If it is a great deal, something you want/need, here is the 'trick' (although not much of a trick) I use. Call the seller, ask your questions and if you are happy, tell them you will pay the full asking price, will transfer a deposit to them right after you get off the phone, and will be there within 24 hours to pay in full and pick-up the 'treasure'.
Anything else: I need to check with my wife/husband, I need to come up with the cash, I need to beat you down on the price, I need to have it inspected first, I can't get out for 3 weeks, can you do this, this and this, etc means someone else who is more committed might swoop in. It is the way of the world.
Frame widths are pretty standard (close enough). Light-duty trucks (F250, Fuso FG) I have are 34+/-", Medium (C4500) 35+/-", and semi-Heavy (Mercedes 1017AF) 35+/-", so that camper width wise should be happy on anything that has the GVWR that can handy it. As if it can stay legally in the US, for certainly not the MAN truck. Not only was it not 'imported' but too new (2013) for EPA. The camper also was not 'imported' for sale, so that could get sticky. Maybe take it out of the country (Canada?) and 'officially' import it and pay the duty? The duty should not be too bad as 'greatly devalued' written off. It will take some work/risk but IF the buyer has success, it would be one heck of a rig on a 4x4 International/Freighliner/pre-95 MAN/Mercedes/etc.