There will be a minivan from Montréal to Boston: right Pascal? ;-) so people in the Montréal-Ottawa area can hop on.
Otherwise, if purchased 21+days in advance, the 7 hour bus ride from Montréal to Boston is only 60$ (one-way) or $110.00 (return)
So if you are coming from abroad (say Jonny hint hint!): You can fly in to Montreal on March 3rd and fly out of Boston on March 19th.
We are arranging for accommodations (likely house rental).
Make sure to get a Visa for both USA & Canada if you need