I have a kayak rack for my hitch that I designed and had a welder friend build. For some reason I can't post the pics here, but if you email me at richvt86@gmail dot com I will send them to you.
Rt 4 is generally the road the truckers use. Warning, on Rt 4, if the speed limit says 30, make sure you go 30. 31 will get you a ticket. They are very strict in those small towns.