Injector work - Diesel mechanic in SE Melb

Hey,
I've got myself a 1988 Pajero 2.5L Turbo Diesel and it has been leaking something black for a little while. Part of the problem is a dodgy injector that is oozing around the base which I'd like to get fixed.

My folks get all their stuff done through ARB but that's not really in my price range for this car. I could take it to Kmart and they'd just send it out to whichever contractor does their injector work but thought I'd check here first.

Anyone know of any diesel mechanics in the South Eastern suburbs (I'm in Brighton) who you'd recommend to fix/replace the injector/s and do any future general servicing?

Cheers,
.Mot