hi skihut and welcome to the forums...
with your chosen tv, trailer options are very limited.
while a vintage bambi/caravel might work with the 'yota,
they are pricey, even if needed a full monty redo.
50s/60s units are not great winter campers...
the windows arent well sealed and the sink conducts cold to the interior walls.
having used an airstream for many years of skiing and snow camping...
this venture takes planning.
uwe's made a great suggestion with the t@B,
really the t@b might be the ideal starter unit...
and it even looks like a swiss chalet!
all of the true things that i am about to tell you are shameless lies. l.b.j.
we are here on earth to fart around. don't let anybody tell you any different. k.v.