Just checking in again. Leaving Albania I had no problems and into Macedonia I did have to pay 50 EUR. Into Serbia, surprisingly, the guy just asked "Ameriky?" when he saw my passport and when I said yes, he stamped my passport and let me on my way, no questions about insurance. According to a government website though, insurance should be no more than 67EUR for motorcycles entering the country for a period of 30 days Entering Kosovo, the border guards were very friendly. I had to pay the standard 15EUR for insurance but all else was fine. They also checked my driver's license and despite not having an IDP they didn't seem to mind. Entering back into Serbia I again did not have my insurance checked, they just checked that I had an entry stamp into Serbia and once they found it they let me on my way. I think I'm getting pretty lucky.