giveen please if you have the whole chats logs from Skype it would be very good if you upload them and also the private message were he has give to you the contact information. Because if you don't it is he's word again'st yours.
By the look of this probably he has many accounts and had scammed in the past he's posting a lot lately looks like an old account with high potential.

edit: probable alt of https://bitcointalk.org/index.php?action=profile;u=1062603