Canadian cheddar cheese soup question

[LeesyUD]

I got the F&W recipe book just to have the recipe for the cheddar cheese soup from Canada. Well looking at the recipe I see it calls for Canadian black diamond white cheddar cheese and Moosehead Canadian Ale. The Ale shouldnt be a problem to get but I haven't been able to get the the cheese yet. Has anyone succesfully found either of these anywhere, like a supermarket? My other question is if anyoe has substituted either of these items with another brand? If so which ones and how did it turn out?

 

[driftwood]

I know they sell Black Diamond white cheddar at Sam's Club, so maybe Walmart carries it too.

 

[MazdaUK]

Any strong cheddar cheese should be OK - make sure it says mature or extra mature, if not vintage!