To be honest,
it's not a good idea. But, I am in a need of a BPPC card, and I realize that the deal is very good, and the risk is very high, but I am willing to take it as if this turns out to be OK I will get a great bargain, as prices are way bigger than what he's asking for the listed hardware. It's very tricky to decide what to do. If you wait for too long he may sell it to someone else, if he's for real that is, but it could also save you from being scammed...
I can only tell you that he will wait for the money to be deposited to his bank account before he sends the card, so if you pay today, 5 days later or so when he sees the money in his bank account he will send the card (approximately), as he is new to paypal and doesn't rely simply on what he sees in his paypal account balance, but wants to phisically have it in his bank. That is what he is doing right now with my payment. Extremely fishy, but, we will see what happens. I am willing to take the risk this one last time. :-)