I would be willing to exchange $50 Paypal for your BTC. However, I will not be going first, even though it is a reversible payment method, because I am highly suspicious of your trust rating, intentions and sales-pitch. If you are interested, and willing to accept a 20% rate then shoot me a PM or respond here and we'll get this going. Escrows around here normally aren't interested in holding Paypal, because they have extremely limited control of those funds.

Are you able to sign a message from the address(es) containing your .562 BTC?