Newbie to NSW

Hi everyone. I'm from Malaysia and currently own a W123-230E and W201-190E. My family is moving to NSW in the next couple of months and I've to get a car soon.

Initially I was looking at Honda or Toyotas as I do not know any trustworthy mechanics in NSW.

Although both my MB are > 20 yrs old, maintenance costs is low in Malaysia. I'm thinking of getting either a W124 Sedan or TEs as I know they costs very little to maintain but unsure about that in Oz.

Appreciate some feedback from current W124 in NSW on cost of maintanance and where I should shop for a used good W124.

Thanks