I'm staying with my brother in Boston for a couple days before I fly out. Also, for the specific dates and flight it was cheaper by about $3-400 to fly out of Boston than directly out of Maine (me, wife, kid) - in part because I have a card through American Airlines that give me free bags and whatnot.
It's not as if this is a hunting trip - I can always just not bring guns and borrow one from my friend. It's not like I can CC when I get there anyway.
Having them shipped out there ahead of time might work.
Thanks for all the info.