“How are they going to get all the kit into Serbia or even Kosovo. Take a look at a map!”
Ever hear of aircraft? Ever hear of ships? (If Russia attacked Kosovo it would go through Albania, since Albania is Kosovo’s sponsor and is on the Adriatic Sea. Granted, Albania is mountainous as hell, but moutains can be crossed [see: Hannibal]). But, more likely, Serbia would welcome Russian troops into its territory, and launching an attack against Kosovo from Serbia is a straight shot.
You are living in a dream world. All Russian vessels leaving the Black Sea are controlled and monitored by Turkey. Movements of Russian Navy vessels are agreed by treaty. Russia would have to take on Turkey, and hence NATO, as Turkey would close the access to the Med. Overflights are the same problem for the Russians.
Albania is also preparing for NATO membership and has established argeements with NATO on defense. Russia is not going to invade Albania and risk a confrontaion with NATO.
http://www.nato.int/issues/nato_albania/index.html
This is why Russia is hamstrung on any active military response to the situation. Any military action is going to drag Russia and NATO into conflict. Russia is hamstrung and will not attack NATO over this issue.