The Canadian postal system is the worst I've found so far. I found a gearbox cluster ($10) and a shift drum with forks ($15) on ebay a few years back for my CB350 roadracer. The postage to Western Australia was a blistering $91
The vendor told me to buckle up as the system in Canada was appalling, and well-known for its ineptitude, After shuffling around for three months I made a polite enquiry, but he assured me it had been posted when he said, it was under way but nobody knew where. A day before FOUR MONTHS was up, I contacted him again, and again he advised me to hang in there...later that day, the stuff turned up.
Apart from the delay, it was still a good get for a gearbox compared to the cost and availability of NOS for a 1972 motor.