Something may have happened with him given that he isn't even responding to the paypal claims. You guys will get your money back if he doesn't.
I'd remove his cell and e-mail info - I understand you're mad but anything could have happened on his end. It's not clear that he's scammed you guys yet.
If he put that he prefers local pickup, that means he actually has the products and was willing to sell them in person for cash.
Unless you have evidence that he really is ignoring you (picked up then hungup the phone, recent flaky correspondence), he could've died for all we know/death in the family/house burned down.
Edit: he hasn't even logged in since 3/29