Long time lurker and very rare poster here. Wanted to just chime in as it's great to see the Aussie presence around and even better a Sydney-based, rep-friendly repairer at that.
Very unfortunate to hear that the original repairer OP mentioned may be a no-go now.
Will definitely be hitting up
marrickville (I live a stone's throw away if you're actually based there haha) for my next service, hopefully you're not too swamped with work mate!