Unfortunately, you don't have the luxury of being civil for too long. eBay doesn't give you much time to open a dispute or leave feedback--only 60 days. If he hasn't e-mailed you back in the next few days, open an "Item Not as Described" dispute through eBay, and open a dispute through PayPal if you can. (It's been a while, but PayPal still does its own disputes, right?)
Negative feedback is nice and all, but it won't get you your money back. Make sure when you open the dispute that you properly describe this as FRAUD, because that's what it is.
Also, I'm sure you already know this, but just in case, you can check out Stealth Iron Man in this site's Database to compare it to yours.