Thanks for the advise there.
Just managed to get confirmation from slammedmind/kimi that the goodridge braided hoses for the s14a would fit the s15 without a fuss. So prolly will fill up on some motul rbfs at the same time.
As for pads, the current bendix metal kings just smokes after a coupla short laps at a local autocross track. As for power levels, still relatively stock-ish, just basic bolt-ons, running 1.1 bar. Like you said, i will get better pads first and see how things turn out.
Actually the state gov. just gave the green light for a proper track to be built here, hence my initial plans to upsize the rotors. Will do up the others first, and pads. If they're enough, then woohoo more $$ for other stuff, lol