Wakey, Wakey
Most of the problems are NOT the Canadian government!
It is the US "Home Security" people and trying to get an EXPORT permit.
Canada harbors terrorists, doncha know??
Bang on

I would even go for an individual informal user permit from the state dept. that would already have you pre-screened and would allow companies in the states to do business with an individual. This way all parties could easily track trade and if "Joe Smith" bought more weapons grade plutonium than he could personally use himself he would be red flagged and have multiple complimentary body cavity searches.