Personally I am very suspicious of buying high cost products from ebay, the suspicious part of me I guess, and well I think it is clear that paypal is only to be used for small sums, I know you can now buy cars and houses and anything like that but to pay that amount from what is a really susceptible site well I can't have much sympathy.
The person I live with, was scammed by an ebay seller luckily it was only £15 but she got that back from paypal, paypal will only cover transactions from certain countries also, if you are buying from japan, china etc then you are stuffed....
Live and learn.......