Most sellers offer me more than 10% if I do Paypal. Even if I were a trader, it'd be also hard for me to do it because scammers can accumulate the payment up to 6 months for chargeback. I guess other escrow service is better
On localbitcoins, there are a few experienced overseas sellers (based on his ratings and transactions) with price listed as low as 6000.
An escrow service is pretty much useless when it comes to reversible transactions such as PayPal, Skrill, Neteller etc.
Virwox can be his option too for using PayPal.
Virwox is not really worth it, the fees are too high and even though there is no verification needed, you will need to have an old account If you want to buy any significant amount.