Ok, this may be my final report here on this topic. Picked up our 2012 Hideout 26B yesterday. I put 100 miles on immediately after the excellent 3 hour "orientation" and some was steep climbs with no running start.
The verdict is simple ... the hp power and torque are more than adequate for a new dry 5200 camper with 750 lbs of adults in the Tundra CrewMax. I actually pulled from 50 to 60 going up a 1/2 mile very steep incline (Dannemora Mountain) in 4th gear.
I definitely can hear the 5.7 growling, but the rpms stayed under 3500.
The onboard mileage meter was something to watch as it fluctuated between 4-7 most of 100 miles. Again this was extremely unusual terrain that I purposely tackled so I can ascertain the pulling capabilities.
5 & 6 gear use seemed I'll advised as it caused a lot of searching for the right gear. Also I found manual select seemed the way to go on those road
All of the camper functions seem straight forward and very easy.
Although most units solid today are with a slide, we were clear that they would add weight & maintenance and not a requirement for us. We would rather have the easy, low cost, simplicity and weight savings of a non slide camper for our traveling desires.
Thanks again to all who helped prepare us