How do you deal with humidity and condensation in winter? Do you have a dehumidifier? I think Dripley uses his Fiver in winter. 

 

Also what hitch for the truck is a go to brand and type. I would like to get the best, maybe easier to use. T.I.A.

 

If I do this I want one about like IBMobile has. It's not too huge

I have never used a dehumidifier my self. I never had any problems anywhere in the structure that I can tell. Sure the windows sweat sometimes, like when cooking but it was not constant by any means. I also stopped using the furnace for the most part and used a tower ceramic heater in the bedroom and a larger infrared heater everyone sells for the living room. Both 1500 watt heaters. I dont like drying the air out to much, its just uncomfortable. 

 As far as a hitch, mine is a 20 year old Reese and it is still going strong. bought it with the first 5th wheel.