rcpilot, my suggestion would be, not sure where in Tenn. you are, but doesn't really matter. The best way, IMHO, would be 81 north to Penn. (no tolls) Then, in Scranton, pick up 84 east. (again, no tolls.) Cross over the Newburgh/Beacon bridge, (yes,toll) into Mass. From there, 84 turns into I believe, 91, and up into Boston.Distance wise, don't think its much different than schlepping over further east to het to 95, NJ turnpike. Hope it helps.
Kevin
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2006 Monaco LaPalma
2015 Hyundai Elantra