From Goblin Valley take UT-24 West to the
Capitol Reef National Park and the Torrey area. From there you can explore the
Burr Trail,
Fishlake Scenic Byway,
Anasazi State Park and other attractions on the Eastern side of the
UT-12 Scenic Byway in your toad.
From Torrey continue West on UT-24. Take the left onto Browns Lane at the sign that says to Koosharem. Turn left onto UT-62 and follow it to US-89 South. Take US-89 South to UT-12 and
Bryce Canyon National Park. From Bryce you can explorer the Western end of UT-12 and visit
Escalante Petrified Forest State Park,
Kodachrome Basin State Park, and
Calf Creek Falls.
This route is a little longer, but in my opinion less stressful than UT-12 and will allow to see much more than you would see by just driving through on UT-12 with the RV.
Hope you have a Great Trip!!!!
Safe travels!
Trailertraveler