Ideally you want something that can nicely go from 10,000 to 30,000 seat capacity.
The lower end being for Cavalry and Wild. The higher end being for Grey Cup, a big soccer match, outdoor NHL game and a big concert which would actually have higher capacity because you can use the field.
There are a lot of simple designs out there that can be pretty basic, which is all we need. Best comparisons are probably MLS stadiums...
	
	
		
			
				
			
			
				
				
				
					
						
							 
						
					
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Cincinnati
26,000 Seats
Opened    May 16, 2021
Construction cost    $250 million (343.75 million Canadian)
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St. Louis
22,423 Seats
Opened    November 16, 2022
Construction cost    $457.8 million (629.48 million Canadian)
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Austin
20,500 Seats
Opened    June 16, 2021
Construction cost    $260 million (357.50 million Canadian)
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Columbus
20,371 Seats
Opened    July 3, 2021
Construction cost    $314 million (431.75 million Canadian)
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So with a 2025 budget of $500 million Canadian you could probably get something like one of these. You could probably cut out a lot of bells and whistles (roof, permanent amenities, etc.) to maybe get it to $350 million Canadian. That doesn't seem crazy expensive to me. Especially if you put a bubble on it and call it a community recreation space from Mid-November to Mid-April.