I'm not a fan of the expos project proposal, it's not what I would want. Firstly, they want a stadium with a 35k capacity. The average attendance last year was about 33,000.
So 35,000 is a bit too small. You need a 40,000 capacity, for playoffs and for when you play teams like the yanks/dodgers/red sox to balance out the lower attendance for teams like the marlins. The proposed 75m payroll, just would not compete at all in the AL. The construction costs are also a little on the low end. I think they anticipate about 500m to build a DT stadium open air. There's a snowstorm right now in montreal, so that open air concept probably is not that viable. It would most likely cost 750m+ to build a retractable roof, 40,000 capacity, dt stadium from acquiring land to the extra 20% things cost in Quebec to build (corruption, taxes, laziness, things not built correctly etc..).