Most including myself just use one from a Dakota, Ram truck to Van. Smaller, lighter and cheap. Mine came from a Van in a junk yard.
I do suggest buying all new bushings if you have not yet. There really can be no deflection or movement in the Z Bar.
I will add if you have a Diaphragm clutch with the overcenter spring removed the pedal will not return flush with the brake pedal. There is too much factory built in slop for it to happen without some sort of assist
