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Being exceeding rare anywhere outside the military forces that own them, there is a premium on the PKM whether a full auto or semi-auto variant. There are parts kits and new receivers floating around in the United States but the kits are 4000-5000 USD and the new receiver is 1000-1200 USD so expect to pay large sums and put in many hours of work to get a working PKM.
Of course, as has been standard for anything fun, these are on the list of prohibited firearms in Canada and can not be owned without a special license.