That's allota iron, ya ain't gonna wan't that nowhere near the front er the tongue weight is gonna be unreal. I'd get as much a that over the wheels as ya can.
Now I'm gonna use about an 18' er so pull camper trailer, push the rear wall in bout 2' then add 2' ta the rear an enclose that area with a roof an screen like yall talkin bout, but, I ain't haulin huge smokers like you are gonna.
I'd build a trailer with the tandem wheels ta the rear more, then yer kitchen in front of them smokers. The screened in area is a good idear cause onea these days there gonna require it.
Find yerself a nice chunck a concrete an start layin this out with chalk, set up yer smokers an lay out what yer gonna need in the kitchen, sinks, fridge, storage, water tanks an waste tanks. Everythin ya figure on puttin in there. Then draw it up an run it past yer health inspector, easier ta do this stuff in chalk an on paper then when ya already built it.
Hope that heps some.
Also, that wood lap sidin is gonna be killer heavy, I'd think bout somethin elese or a real heavy duty trailer an a good truck ta pull it with.