The best thing you can do is use a trustworthy escrow here to act on your hehalf. Dont use Localbitcoins due to the risk of a chargeback. You need to know youre 100% covered because Paypal - Bitcoin is very risky. There are plenty here who will be able to do it for you.
It doesn't really matter if an escrow is from localbitcoins or somebody else here on forum. No matter which escrow you use you are always going to have posible problems with chargebacks as this is how PayPal works. I don't say that there are no trustworthy people here on forum, there are and yet maybe some escrows here could be cheaper but other person who is doing transaction with you can always do chargebacks with paypal.