when you combine the amount(4000 euro quite a bit of cash) and paypal then you know you are getting to get scamed.... if an eccentric rich guy want to buy a bunch of pixels for 4000 euro then i ll give him my bank account to wire the cash...problem solved.
conclusion for big ammounts of cash ask the buyer to wire the money.
My opinion is that if the scammer had a lvl 60 barb with 400k dps which is not expensive without all res / vit which didn't need to be good but appear to be good and paragon 10-20 it would've worked haha
Paypal rich guy wants to be anonymous totally legit haha