Quick opinion on this: ~$650 on this time a server is a great deal, However I highly doubt you will find a users on these forums willing to cough up the money for this server or even find the need to use it.
Also, doing transaction in Bitcoin only for this server with no ToS or agreement will probably result in a loss of your 1.5btc. I want all interested buyers to be aware of this situation. It seems to good to be true; there's gotta be a catch.