An escrow can't help in this situation, I wonder if you can actually convince one of the escrows you have listed to escrow any deal. Paypal is highly reversible and as you are selling min $100 , you can easily disapear with the money as your account here is just a full member. Limit your deals to either non-reversible first to show that you are trustworthy , or lower your min. transaction.
Dude to escrow a paypal deal is not always a negative, he can only hold the BTC and I send the PP funds to the other party and after he can release the BTC, and there is also teamviewer to confirm the funds were actually transfered.
And the $100 is the maximum not the minimun