I thought you were buying an og skype, not a tag? Anyways, if you're buying a GAMERTAG and want to transfer it to another account, you need 800 msp on both accounts (obv) and you have to change both of them.
If you're planning to do this, NEVER tell anyone what the gamertag is, because they can turbo it.
If you look up "How to not get turboed" or something along those lines, you'll probably find out how.
But if you actually meant a skype and not a gamertag, there's no way of "transfering" stuff from one account to another (as far as I know). The only way would be manually adding all of the people again.
Also, $55 isn't enough for Jokers account "Insane", he's asking for $80.
+1 HQ post