I have a similar conundrum, the guy I've been going to for the (modded) Volvo is happy to continue to look after the Volvo, but since his son finished his apprenticeship at the workshop & he's back to a one-man operation he's ditching all the menial stuff & concentrating on strange problems with old cars or working on race cars.
So for my wife's car, a VF Commode, I asked Marty of MCM for any recommendations (their sheds are at Gladesville & Gladesville's not far from me at North Ryde nor from Eastwood). He reckons Sam at EK Automotive is the way to go. Rego comes up in 2 months, that's when I'll be checking it out.