I greatly appreciate all your input. In response to a few points: the Roo is a hybrid TT; no, our Tundra will not pull this weight; yes we want 4WD - we're boondockers. Our hope is to travel the west coast of US and Canada in the spring, across the north in the summer, along the east coast in the fall and the south in the winter back to our home base in Phoenix, AZ next year. So yes on long distances and mountains.
We looked at a truck with a running board and I still found it difficult to hoist myself up into the seat - the 3/4 tons are all so tall and I am short -5' 3". We bought a little step stool but haven't been back to try it out yet - will the end of this week. Just seems like that would be a hassle every time I get in and out but might be necessary. However, the main point is how well a truck will tow for the type of travel we will be doing. I think we have narrowed it down to a Ford or Chevy. The RAM trucks are great but the seating is just not comfortable enough for long term travel.
