Still not sure what it is you are trying to say?...."trading for a Canadian camper"?....do you mean you have a Bigfoot 1500 9.5 now, and are trading for a Bigfoot 2500 10.5 ?....well, the BF 10.5 has a wet shower, and the listed base dry weigh is 2490lbs. The "preferred option" package that most BF's came with is another 93lbs. Then it could have up to another 250lbs depending on what options it has......2500 series has a basement and 1500 series do not, so it will have more top weigh too
I have a BF 2500 9.6 (which has a listed base dry weight of 2370lbs) on a 2009 GMC 3500 Duramax ext cab 4x4 SRW 9900#GVWR
The camper watered up and all clothes & food for a long trip is 3400lbs....
I carry a Honda 2000, a camp stove, and a BBQ in the ext cab...
My truck GVW over the scales loaded is 11,000lbs, but I am under my GAWR"s
My tires are load range E 3415lbs @80psi