2012 GT86

Hello, I own a 2012 GT86 with around 165,000 k's on it. I bought it last year and it is now due for a service. I live in Melbourne and am looking for trustworthy dealers or mechanics that provide good quality services for a reasonable price. I was wondering what some recommendations could be. I was also wondering what a ballpark service at this km range should cost (I know prices can vary depending on the work needed, but was wondering if there is a price I can expect). Thank you.