If you already have a Photon, all you would need to buy is a Carloop: https://store.carloop.io/products/carloop
We built that dashboard as a showcase for meetups, conferences and Maker Faires. The box has an instrument cluster, Body Control Module and Engine Control module. All components from a 2012 Chevy Cruze. If you go to car-part.com you can find all components just make sure you ask for a pigtail connector from the junkyard.
Putting it together is not trivial; you'll need to spend quite a bit of time poring through the wiring diagram and making sure all the ignition, 12V power, and CAN wires are hooked up correctly. Certainly doable but allow yourself ample time.
We can sell a custom dashboard-BCM-ECU kit but they are not cheap, so your best route is to DIY it!