Carol, I just wrote a long msg. recommending you take the Trace route. You won't be the only big rig with tow. and there are 3 free CG;s on the trace, the first two going south, I think you could get a site with no problem, especially the Merewether Cg. first one, near the bathroom in that Cg, is a map fo the whole route and historic sites. That is a really nice stop, and a district office for rangers there, and they could give you all the info you needed if map did not answer all your questions. 50 miles an hr., beautiful countryside, just a lovely drive and traffic is almost nil, most of the time.
I
love this area and the history is wonderful, if you have any questions p. m. me and I will try to answer for you. There are plenty of CG's just off the Trace, if you want hook ups and easy to get right back on, State park CG's and private one, the map, list these also.
I hope this post, second time here and just gave up on the morning post.
CArol