TPMS Lifespan MIC M3 SR+ Nov 2021

[1989pooch]

that price per sensor seems crazy high

 

[Onshore]

that price per sensor seems crazy high

Quite a bit cheaper on eBay, around $60AUD

That might be an option for the OP, then just get the local tyre bloke to fit them. There's nothing special involved, no "programming" etc. You just replace them, and the car will detect the new sensors in about 30 minutes of driving.