Highway from Crossville TN to Lawrenceburg TN

[titleman]

I will be leaving Knoxville on Sunday going to Lawrenceburg TN. I will get off I40 at Crossville and take Hwy.70 to Sparta and then looks like 70S to McMinnville and then Hwy.55 to Fayetteville and get on Hwy. 64 to Lawrenceburg. This will all be new territory for me and wondering if these roads are okay for pulling a fifth wheel. The Hwy. 70 from Crossville to Sparta looks to be a scenic route on my map and I know some of these could present a problem. Would certainly appreciate some opinions on all these roads. Thanks Much.

[TPUC]

Easy drive no Mtns or anything. Stop and visit Jack in Lynchburg. It 4 lane most of the way. Tullahoma to Fayetteville is about 25 miles of 2 lane but easy low traffic drive.