US-64/74 in from I-75 is no problem, wide lanes and shoulders. Most is 4 lane divided. Up around the lake is 2 lane, but still wide lanes and shoulders. I have no problem taking our 35' 5th up that road at speed limit plus. TN-30 thru Reliance, TN is likely doable, but the road is narrow and in many place will not have any shoulder. It would be shorter, but probably not faster.