Here is what I came up with.
The ride starts at Chrysanthis restaurant goes up Route 13 into route 77, and up route 132 next Route 93 all the way to Lincoln, NH.
This will be very easy for people to branch off to head-back depending on there schedule.
I was thinking of a stop for coffee,bathroom gas etc, in Tilton, probably the Shell & D&D on route 3, or McDonald right next door.
Then after we would continue on Route 132 up, depending on the day we go, I will branch off at some point myself.
Route 132 goes into Route 3 which takes you all the way to Lincoln, NH.