Go to Advantour.com (a competitor of Stantours) for some information on VOA. They state that VOA is available for those who are originating their flight to UZ from a country where no UZ embassy exists (ie. Canada) and the connecting flight in a country where UZ embassy does exist (ie. Istanbul, Turkey) does not allow enough time to obtain the visa there.
Avoid any hassle with sending your passport etc. to the US.
I am planning this same route possibly next year (Canadian passport), so it would be great if you can report back, after your trip, on how things went.
Have a great trip.
