I'd suggest you go to the UK and work there for six months.
Not as easy as that Harry. From my colleague's experience and what I found out the UK ,while not being a Schengen member, share such information and vice-versa with Schengen states.
He has visa free entry to the UK but upon arrival and noticing his schengen visa- UKBA will almost certainly check if he has any overstays.
6 months is a very light penalty indeed! Going back to Ozi and coming back might be expensive for him.
If he was in a long term relationship and his girl would support him then the application for leniency would be a good shot.
It would also mean a lot of paperwork. Other than that, if he can't come up with a good plan, it's not a good idea to overstay.
He just has to admit that he got off with a light penalty and if he makes it worse he could be banned for 10years.