www.paddleboston.com has a Paddle King PK-3000, 12' aluminum pontoon-two person, foot pedal boat from their rental fleet; a fixer-upper for sure, and now up for sale with three photos to view its condition for just $300, (msrp new is about $2175) at their Charles River waterfront boathouse location, in the Auburndale section of Newton, Mass, next to the Boston (in Newton) Marriott Hotel there, which is very directly close to Route 95, and about 15-miles west of Boston.
To see it, just google "paddleboston.com Paddle King PK-3000 rental pedal boat for sale $300" It seems to be impossible to find the page unless you use google?
It don't look too bad in the photos, and could be good with an electric trolling motor so's it could be peddled, motored, and paddled all at the same time with a long kayak double paddle......maybe rig up a gaff rigged sail as well.....whoa....what a boat....and just three hundred bucks to go grab it .... such-a-deal!