I'm extremly sorry for you but can only say 's**t happens'!
I personally was the victim of such a scam. The route to follow, if you want action taken, is to contact your trading standards office, most towns have one, report as much detail as you can to them. Ebay will cooperate with them and, if your lucky, the scammers will go down - mine did with a £5000 fine and 1 year inside.
Try it - you know it makes sense.