I haven't had a problem with selling items to overseas buyers, but others have. A few points to clarify previous comments:
A paypal payment could be a purchase or a gift. A purchase entails more fees but gives more protection to the buyer. And of course a gift payment for a purchase violates paypal's terms. Note that there are paypal currency fees on top of paypal transaction fees unless the buyer has a paypal account in US dollars. Some overseas buyers do.
A payment can be funded by credit card, bank balance, or paypal balance. If funded by credit card (and perhaps bank balance too) the buyer has an additional method of reversing payment - more risk for you.
As noted, paypal protections for seller only apply when shipping to a confirmed address following paypal shipping requirements.
As with any high value sale, it's helpful to take photos immediately prior to packing plus photos to shop the item as packed.