I hate that feeling, but good moves on the 1/3 payment! hope it works out okay!
Also PayPal are always very good with refunds if you make a claim, got to be worth a try when the time comes?
I know PayPal are a huge corporation, but I find them okay. Sure I had issues with them here and there, but 99% of transactions are all handled perfectly and they have been good to me both as a seller and a buyer. You just have to know the rules and play along.