Look, i bought from a member on here named Smoky. I paid him $200 for the carbon fiber roof spoiler for my sedan. I forgot exactly how long I've waited but it was at least 2-3 weeks. I PMed him, re-bumped his FS thread, Emailed him, all the same as you. Mind you i did the same also with the complaining but I PMed him and Emailed him to keep it private. Not going to tell you you're wrong for what you did but he did reply to me saying that he has been having some issues that I won't say publicly.
What I'm trying to say is that people have lives, what if, God forbid, something extreme happened? Even when Smoky didn't reply I would have waited 30 days before filing a complaint to Paypal. I hope you get your item and I don't know him personally or even through the internet, but I wouldn't worry.
My opinions, wait until at least 30 days and just email/text him periodically. Don't suffocate him with threats. Good luck with it though.