You miss the one city already in talks.  Winnipeg.  All roads lead to Winnipeg, all rail lines run through Winnipeg. Hooked up to the Interstate Highway System,. Already has an expansive tariff/tax exempt trade zone adjacent to it's world class international airport (lands the Russian Antonov routinely, headquarters for the Canadian Airforce).

Winnipeg has the country's most diversified economy, is right in the middle of the country and continent, and is the fastest growing city (per capita) in Canada. 1.1 million in the Greater Winnipeg region. Winnipeg has moderate affordable wages, housing, land, and lake cottages (recreation/centred in cottage country).  Four universities, world class University of Manitoba's global influence including the Ebola vaccine; long line remote electrical transmission (Manitoba Hydro International), very high tech workforce (aerospace). Cheap (huge ongoing subsidy), abundant renewable hydroelectricity.

And Monty Hall's city, "Let's Make a Deal"  :)   A+

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