Interesting scenarios. Not being an attorney, I am not sure of the answers, but I will make a guess. I doubt that being in a JV with a Canadian-traded company would change anything. The company itself is still not Canadian traded.
As for your second scenario, I believe that the BCSC would review a technical document issued and in fact, would require submittal of documents. However, they would not be considered "43-101 compliant" until they are reviewed and approved.
As for your third option, it appears that USPR does not think that the BCSC or the SEC cares if US-traded companies fraudulently issue "43-101" reports. Ironically, several SEC-filers have very recently come under the scrutiny of the SEC because of their "43-101" reports:
This is what the SEC asked LBSR, regarding their "43-101" reports:
Is USPR next? They should be. Especially if they have the cojones to issue another report, and make the mistake of fraudulently labeling it as a 43-101 (again).