You only had 45 days to get help from eBay or Paypal on this.
Sigh.
Phone the 1-800 number on the back of the credit card you use with your Paypal account and ask about a chargeback. Even cc's have deadlines, but if you don't ask, they can't say yes to a refund.
You only had 60 days to leave feedback, but if he left any, you can add a Response. The most effective feedback is calm and factual. "Paid August. Shipped ? October. No delivery as of December."