There is not a trusted escrow that is willing to act as a middleman for a Paypal transaction, at least as far as I know.
Paypal can be charged back, and there is nothing any escrow or user around here can do to prevent it; this means most are just unwilling to deal with it at all.

On top of that, your only feedback is from people accusing you of being a scammer. You are presenting all of the signs of being a scammer, so please understand that nobody serious will be approaching you.