Clutches to suit R154 spline?

[danny20]

Im half way through putting a 1UZ into a 180sx. Have got a bell housing to adapt the motor to the box and now just want to know what my otpions are as far as a clutch goes? im going to convert it to a hydraulic clutch release bearing(no room for a fork!) so must be push type clutch only. What other cars/gearboxes had the same spline as the R154?

Cheers in advance