How many days do you have budgeted?

One thing you might want to consider is getting yourself to Jersey Shore, PA, which is outside of Williamsport, and taking the Pine Creek Trail all the way to Ansonia. I believe you can camp in a few places along the trail. There is also camping at Leonard Harrison State Park, which is near the end of the trail U.S. 6 used to be a nice rode to ride east-west. It's my understandig that truck traffic resulting from gas fracking operations has made things not so nice.

Riding south-north long some of the Finger Lakes is not always hilly like you might imagine. That's because the glaciers that carved them moved south then retreated north. I did the Bon Ton Roulet back in '06. Stayed in Dundee one night and then rode up the west side of Lake Geneva all the way to Geneva. It was not difficult.