I'm from Germany and it's really not possible to have a "confirmed address" with Paypal here
Your Paypal account can be "Verified", but your address not confirmed.
Beats me why?! As I understand it a confirmed address only means that your shipping address is the same one that's on your credit card, right?
Once in a while when I'm in need for a laugh I call them up and inquire about that possibility, but apparantly as of now there are no plans to make that happen. It really is a shame because a lot of international sellers will only sell to customers with a confirmed address anymore
As for the shipping: I usually get my items via Priority Mail International or EMS, both are fully trackable now, but I think only EMS offers signature confirmation while PMI only shows "Item delivered" ... you might want to check this with your post office
The main thing to worry about would be customs. Please make sure that your buyer is aware of that issue. For merchandise the limit is 18, for gifts it's 45. Everything about that will be taxed
Customs here doesn't really have a pattern so it's really hard to estimate whether an item will get taxed or not. Sometimes I think it all depends on the mood of the officer
I've gotten bags declared as gift with a 250$ value and had to pay 25 in taxes, but I've also gotten bags declared at 800$ and was not taxed
Lately the tax incidents have multiplied though, so make sure your bidder knows about that and understand that all fees are her responsibility.
Good luck with everything!
What are you selling if you don't mind me asking?