Lake Champlain VT

Has anyone completed the circumnavigation of Lake Champlain using the Lake
Champlain bikeways map?

I'm wondering how many days it would take to ride, lightly loaded, round
trip, starting and ending in Colchester, VT. Plan on 50-60 miles a day.
Would  head north through the Champlain Islands and cross over the lake to
Rouses Point, NY. Then head south to Whitehall NY, back into VT and north
back to Colchester on the VT side.
 Any insights will be greatly appreciated.

Bryan
Barrington, RI