Utah Route 12
We also took Utah Route 12 south from Torrey a year a half ago. Did not want to drive I 70 on the way from Arches NP to Bryce Canyon so we went south on 191 and then north and west to Torrey. Yes the pass does get you up to 9200' but I do not recall any particularly difficult ascents, descents, or unmanageable corners.
Not sure on our OAL but Moho is 35' and the toad is a Cherokee.
Not a high speed trip but absolutely worth the views.
I hate freeways when there are reasonable secondary roads to get there.
Steve & Patti Shelton
2015 Tuscany XTE 34ST
2014 Jeep Cherokee