We have a plotter at work that prints on a 34" wide roll that is quite long...100'? maybe more. If you could format the route with the appropriate software you could print up to 5 6" wide continuous charts on it. and then you would only have to make several very long cuts to split them up. I cannot use the work printer for personal projects but I am sure there are units available at office stores.
My intuition nearly makes up for my lack of good judgement.
Just installed my new trolling motor