Thanks again for the helpful advice. After my last post I informed my manager that this is looking worse than I thought. Outside of a pre-approved TRP through Consulate it's just not worth the expense and potential fall out. I can just see our accounting department "A five minute trip to Canada? Hmmm....."

I'll lobby instead for moving this event to the States in the future. Had I know all this earlier it would have been held here this time. Anyway, I'm glad I found this site - it's an awesome resource!