One of the largest california STOCKING Rays sellers is
SpeedImageUSA
Welcome to Speed Image USA -
sales@speedimageusa.com
I've been to their warehouse, seen how much the stock. I can't speak for THOSE sizes, but shoot them an email
RavSpec is on the East coast, they're pretty big
also, Evasive Motorsports seems to stock stuff
Everyone else probably just relies on drop shipping from Mackin Industries, the north american wholesaler
EDIT:
I just saw you wanted Gloss Black. That might not be a standard color that is stocked in those sizes
not familiar with who is the best canadian retailer, sorry