Hello Pete,
Only because I was at the Waterford Historical Society presentation this past April, am I aware of their plan to build back towards Bridgton. It was explained that a new routing will be used to do so, not quite on the old grade, but as close as possible.
Their gas-mechanical critter, which they have numbered as B.& S.R. Railroad no. 9, was once offered for sale to the W.W. & F. Ry. Museum. Along with a two foot gage Whitcomb. No. 9, the Plymouth is not two foot gage and the Bridgton guys are having to re-gage it. The Portland Press Herald reporter said that the Plymouth had been used on the cranberry bogs, that is not the case. After the owners of the two machines sold them to Jack Flagg, a contractor in Marshfield, Massachusetts, he painted them at his shop and had both displayed in his yard at the shop he ran. When Jack and his partners signed a contract with the Atwood Corporation (in 1999) the locomotives were moved to Edaville, and the Whitcomb repowered with a Cummins 250 diesel and a truck transmission.
The Plymouth was lettered up for the Cranrail Corp. which was the operating entity at that time. Following a surplus equipment auction, the Plymouth departed Edaville and may have gone to the Silver Lake Railroad in Madison, New Hampshire at that time. I believe that when the Silver Lake operation closed their doors, the Bridgton Railroad became the new owners.
Hopefully the Bridgton guys will jump in and add to what I have said and correct any inaccuracies I have made.