I don't understand something here. You are selling, you insist on transfer by paypal friends and family, so as far as paypal are concerned the buyer is just sending you money out of the goodness of his heart. There is no legal transaction taking place for paypal, they even warn you of this when you make a payment via friends and family. So if you are the buyer and you don't get the goods you cannot reclaim your money via paypal. Via your bank or credit card provider, I don't know. I strongly suspect they would not be interested either.
If you make a payment by paypal, totally different matter. Then the seller has to trust the buyer.
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.