You could consider the Steelmate system, which has replacement valves with senders for your wheels and a display on the handlebars.
https://www.smmotorcycles.co.uk/product/steelmate-tp-90i-pro-tyre-pressure-monitoring-system-tpms/
I had this fitted on my previous machine (Triumph) and have to say found it to be very good.
They do also do a slightly cheaper system which has the sensors in the dust caps (which works just as well) and may be easier to use - just ensure you have metal (rather than rubber) valves though if you do choose this system
.Having said I would go down the michelin option, typical me i have now bought the fobo bike 2 that runs via Bluetooth on your phone, spoke to a couple of dealers price 400ish fitted for bmw option,
I will stay with this until trade for 1250.