My 2cents with my limited experience.
Contact CSG_David of Counterspace Garage for recommendations based on your use case. Also contact your local 86Cup group and join
Brake pads: Winmax W5 minimum.
Brake fluid: Project Mu G-Four 335 Fluid
Hoses: OE brake lines OK
Engine oil: 0w-20 Motul 300V
Oil cooler: Required. Jackson Racing Oil Cooler
Tires: 225/45/17 GT Radial SX2. Not the stickiest tire, but gives consistent performance, lasts long and great learning tire.
Wheels: The stock PP wheels are good. Enkei RPF1 has weird fitment issues on the PP. I use OZ Ultraleggera 17x8 and has good clearance.
Suspension: Camber bolts ok. Keep the stock sway bars. No need for spacers unless needed for brake/wheel clearance
Safety: HANS