yea I would recommend just making a new one from the looks of it. I kinda honestly doubt your going to get it handed over but I suppose no harm in trying to though will never truly " take over" . They would just have to give the officer rank supreme control of everything and make you an officer which I mean would work just fine but you would be going to original owner every time if you would like revise any settings of permissions or group type.
edit, oh actually realized you can get ownership just remembered, you would just have to be made only officer or moderator ( oldest officer then moderator if no officer ) and then owner would just have to leave which would transfer ownership to you, but other than that there isn't a manual way of transferring ownership.