Plainsman are 100% sure? `cause my ORBX Edmonton looks very similar to your "stock" Edmonton.
Here is the frontier to ORBX land a little east of Edmonton. I did that flight when I bought the whole US/CA addons a while ago in a sale, but I think Edmonton belongs to the PNW addon.
Watch the difference in the ground textures
edit: just did a little test flight, even the three King Airs in Parking Position are there.