Pretty sure this Priority International tracking will not hold up for an ebay dispute most of the time. I use to ship Priority International, but half the packages never say "delivered" and if they are not scanned delivered then ebay has no proof they were delivered.... I think you were the one who actually got me away from Priority International.... From what I understand the priority tracking once out of the US is up to the country it is being delivered in and I would not chance it.
Under $250 its fine - but over $250 you need a signature. Ive shipped over 1500 packages with priority international. probably more.