I would like a stock / conversion like that for an ‘03 Springfield. The biggest problem with the MN is the odd cartridge size. Not readily available in the U. S.
Not sure where you are, but I still see it often. Someone just posted on the Texas Forum a shop with spam cans of 440 rounds still going for $80. You can pick up cleaner firing new stuff at Academy and Cabelas for under a buck a round too.