Are you willing to go first? Many nwbies on skype insist on the buyer going first, and many people get scammed this way. Be careful dealing with this user if you like ure money!
Your concern make some sense.
But for me, I give my firat time client access to my adwords, bing account VPS to check and if satisfied, they can pay.
I love your warning message, you mean no harm man. Besides I am not a newbie, though I might not be active here. I have been a registered member for more than 4 years.
Thanks