A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
A nice cheap mount! I had a 400 camera mounted using a cheap ebay mount on my PCX. The thing broke apart as i was riding and if i had not put the strap around the handlebars it would have been bye bye camera. So good bit of thinking on your part!