Advice on route from Maine border + any Caravan's to join?

[Redshft]

Hello. This is my first post here (been on RX8 and RX7 clubs for years) so forgive me if I just jump right in.

I'm located in Halifax, Nova Scotia, and I just registered for the DGRR (and I'm working on a couple of local friends to come as well.)
I've got about a 5 or 6 hour drive to get from Halifax to the Maine border. From that point on, I'm lost and at the mercy of Google Maps and my TomTom.

I'm asking for anybody with local knowledge for any advice they can shed on best routes from there to get to the event. (Or any groups we could fall in with on the way.)
Playing with Google Maps, Streets & Trips etc. looks like we could make it somewhere into Connecticut or New York State on the first day with out killing my self (but it would be a long day.)
Any input on the best routes? Caravan's?

Thanks for reading, and thanks in advance for any advice.

Edit: Should mention I am still up in the air on targeting a Thursday or Friday arrival.