This seems way too good to be true. Will you accept a forum escrow in this trade, or maybe prove that you even have the funds?
Geez you're obviously just posting for your forum signature. A forum escrow is not necessary with paypal. Why? Because paypal is irreversible.
No. Forum escrow should be used unless one party has sufficient trust for one party to send first and the OP is not one of those parties.
If a PayPay transaction is to be reversed, then the person disputing the PayPal transaction must lie to PayPal (and they must sign an affidavit under oath that contains false information) because digital goods (such as bitcoin) are not covered by PayPal's buyer protections.
Additionally, if the OP is in fact a scammer and does get someone to send him PayPal funds first and never sends BTC, then he will likely attempt to delay the person he scams long enough so that he is able to launder his newly stolen money so he can cash out.