Where does one go to get an IO-550 fuel pump overhauled or exchanged? 

My hangar-mate has a Cirrus SR-22 with the IO-550N engine.  The mechanic could not set fuel flow, and declared the fuel pump a problem.  He contacted Superior (Australian office) and after taking the order, they could not find it, and now have no idea whether or not they can get a fuel pump.  Now Superior suggests going elsewhere without providing any suggestions.  I suspect the Thielert/Superior bankruptcy has something to do with this. 

So now the question is: where does one go to get an exchange fuel pump for an IO-550N without waiting months?  Any suggestions or recommendations would be most welcome.

Fred Moreno, also an IO-550N operator, looking ahead