I'd recommend to stay away from the buyer. It has signs of scammer and has been suspended for good reason I'm sure. If no money or goods have exchanged yet then that's great, just walk away. In the meantime I'll report this post and mark it for the marketplace mod JWN

Don't post the username or any private info here, but feel free to pm JWN and discuss it privately. Maybe He'll even move this thread to the marketplace problems thread.

I can assure you from the info given you do have a scammer of some sort, or at the very least someone ( a tire-kicker) who you just don't want to deal with. If you get a Paypal payment the buyer can indeed get the payment back and probably will just as soon as you ship the crawler or as soon as he gets it.

good luck.