the B15 disc is all nissan will supply now for SR20's friend over here ordered a boggo standard disc from an Almera GTi after the one from GSpec spat its springs and the one he received was identical.
New clutch cable
One of Miko's clutch brackets
New Axle Seals
New TB
New TB clips
you wont need to replace any bolts unless you have snapped them.
and this I cant stress enough, make sure to properly clean the area that the bearing slides on, and then regrease it with a decent lasting grease something like CV grease.
My pedal about 6 months after changing the clutch became very stiff and notchy, I removed the box to find the cause, only to see the grease I had applied on the gearbox and TB that was supplied with the clutch kit had gone and the bearing had worn grooves into the casing of the gearbox, once I had greased and re-assembled the box the pedal feel was comparable to my hydraulic clutch
Could also be a good idea to strip down your starter motor and clean and regrease it.