Hmmm, Maine in August. Bring bug spray. And snow tires. While you're riding up 95th Street from DC to Maine, stop in here in Boston. There's a few of us sohc'rs that'll gladly buy you a beverage of your choice.
If you do get as far as Bar Harbor, plan on taking the car ferry over to Nova Scotia and drive around there for a day or two.
Later,
Chris in Boston