well i just bought a tent yesterday it's a 16person cabin tent.
same as last year. still waiting for things to dry up a bit.
though i'm really ichingto build a plywood cabin of same size
and wrap it in steel siding. insuladed and run water& electric out to it as well.
my plates pretty full these days i'll have to see.
Just a suggestion, and only my opinion so feel free to disregard it, a steel wrapped cabin wouldn't feel quite woodsy or bush crafty enough for me, if it were mine I think I'd frame it with studs and side it with log siding or saw mill slabs cut from the outer trunks of trees being sawed into dimensional lumber, you can usually get the slabs free or next to it from most saw mills, you can leave the bark on or strip it off, I'd probably strip it and spray the siding with Thompson's water seal or something like it for weather and bug protection.
I think you could build it pretty inexpensively out of rough cut studs and slabs from a saw mill, and it would have a much nicer rustic look and feel.
What ever path you take, good luck with your camp project.