As for mailing yourself supplies, the U.S. Postal Service has flat rate boxes you can mail from anywhere in the U.S. to anywhere in the U.S. 12x12x6 (Large Box) is $16.
It depends if we have the time to mail it to ourselves after we cross the border or if we have to do it while still in Canada - one of those buckets would cost, I'm guessing, $100 from here. So that would be $200 for the buckets. This is why we want to just resupply once - it will cost like $400 just for the buckets let alone the charge to hold them.
