We have a charter provider at the BVY called NX Aero. www.nxaero.com The have a few TBM 700s at BVY but they have a king 90 in GON. Not sure if thats close to Windham or not. I would try giving them a call they have taken along a few low time pilots in the TBM before. Not sure about the King Air. MAybe if you can explain your situatuion they can help you. How many hours you have? I was once told if you have at least 500 hrs you can "bootleg" 135 time. That is fly right seat for a 135 operator gaining multi engine time. Though never had the opportunity to do that. Good Luck