This scenic paddle has no major rapids, nice campsites, and only one short portage on Guildhall.

Day one: Paddle from Bloomfield to Samuel Benton Campsite (14 miles), This is a scenic paddle, well away from roads.
Day two: Samuel Benton to Scott C Devlin (11 miles, easy day) South Guildhall (17 miles, longer day). Very pastoral landscape. Lots of bends around Maidstone, through land conserved by the Nature Conservancy.
Day three: Out to Rt 2 in Lancaster or Mt Orne... (10-15 miles). Easy day out to Lancaster.

Consider staying at the Belknap Campsite (accessible from the road) the night prior.
For those wanting a shorter first day, the Maine Central Campsite and the Scott C Devlin campsites are well spaced.