I had the same number texted me right after I posted something on kijiji. same tactic of asking a paypal.  

I posted an item for sale on Kijiji, this person wanted to buy it and send me money through pay-pal, he sent me FAKE pay-pal emails showing he sent me $700 and he wanted me to ship the item to Nigeria. I called pay-pal and they informed me there is no payment made to my account and they do not support shipping items to Nigeria.

He originally txted me from this number then a day later sent me msgs from 518-328-4817 claiming his other phone died and he has this number as well.

i reposted my ad a couple of days later and got another txt, same deal, i didn't bother txting him much, just told him i know hes a scam artist and im reporting him, he never msged me back, that number was 518-328-4817