Well, for the beat up heavily refurbed ones, you would not be able to move them for anything more than about $275-295 each at best. If you can get the ones that are not heavily belt sanded on the buttstock, do not have peened out swastikas and do not have an excess of pitting under the Russian re-blue job, and preferably without the big "X" stamp on the receiver ring, those will sell for around $450 each.
Down in the states, they sell for a lot cheaper than that. The Americans were selling these as cheap as $149 at some dealers when they were available and at most they were like $290. I doubt you would do better financially down there, best bet would be to buy as many as you can, as cheaply as you can, and send the best examples to Canada where guys will pay premium for the nicer rifles in smaller numbers and send the bulk to the US.
That's what Marstar's marketing strategy usually seems to be. A great example were the Yugo guns. Typically, the best ones sold here at premium prices ($350+) while the majority went south and sold as cheaply as $99 for an issued (used) M48 Mauser from some dealers.