New Zealand Datsun Club

am planing to run hydraulic handbrake with 2 pot calipers like 1ns on datsport dont know what those 296 mm rotors are off ??

am building some front adjustable using r31 struts want to make car low as possible with good travel in the shocks wondering whether to shorten the tube and run different insert (if so by how much and what length insert) or is there a better way unsure on were to wield the adjustable sleeves on stru...