Don't under any circumstances wire money to the vendor's account. There are dozens of people being ripped off daily using that method. By the sound of things you are talking about quite a large sum of money. Does the Paypal guarantee cover this amount or does it fall short?. Before paying into Paypal contact your credit card company and query if their insurance for all purchases over £100 cover you in this situation. Have you considered using an Escrow service? Full details should be available on Ebay but basically, for a small fee you pay the money to a third party who retain until you have taken delivery of the item and only after that is the payment released to the vendor. There are a lot of bad guys out there. I'm not suggesting that your vendor is one of them but far better to take some sensible precautions.