Check with the gunlist and gun trader newspaper for all the ads from all the importers.
are you looking for the PU or the PE scope? Both are for the M/N. I have a finnish with PU. It was an import that was correctly put together in the US. A real Finnish sniper is about $10K as there was only about 125 of them.
I saw an ad yesterday for a complete gun with scope and mount for $379 so figure about $250 for the mount and scope. at least the PU, the PE will probably be more.
Mine with Czech 147 silvertip will put 5 in just over an inch. So lot of fun shooting it.
BH