Try the KOA in Saco Maine. They may be open if weather permits and I can assure you they can accomadate 40' coaches. They are located north of Wells and just off 95 on Rt #1.
Also "Silver Springs" in Saco. They may or may not be open then. Call and ask for Marion. They are closed now but leave a message and she will call back.
FYI, Even though there is a Cabella's at the Scarborough exit off Rt 95, don't plan on overnighting there. Overnight parking in the parking areas is prohbited by the town. They do have a dump station that is open year round but water is shut off during freezing weather. Just making sure you don't think you can stay there for a night or two. You can't.
Walmart in Biddeford is an okay place for an overnight or two. Turn right at the Biddeford exit. Walmart is on your left. Shopping galore in the imediate area.
Let me know if you need more info.
Tiffin Allegro Bus, 425 Cummins powered Freightliner XCR, Camp Freightliner, Honda CRV, tow-N-4 Down, U.S. Gear Unified Tow brake, Blue-OX tow bar, TST Monitors, Seelevel II Monitors, Samsung Res Fridge, Progressive 50A-EMS, No Kids-No Pets, Full Time.