You likely won't find authentic M/05. It'll be years yet before the Finnish Defence Forces complete the issuing of new kit to all their troops, and longer before any of it gets surplussed.
There's a seller on eBay who has decent looking faux M/05 for sale. He's in Poland, and goes by the seller name "robepit".
Here's a link to a Finnish retailer which has plenty of military goodies:
http://www.maanpuolustusyhtio.fi/Pub...frontpage=true Unless you understand Finnish, you'll just have to poke around the site, but there's enough there to make it worth your time.
Now, if anyone can find gear in the FDF's desert pattern, please let me know. It's sort of like the German Tropentarn in a digital format, and even harder than M/05 to locate.