It's simple.
1) Get a 95 maxima SE alt(125amp) or some other ones (300zx will work too) if want. Just choose one by ampage. (just get a core to match whichever alt. from junk yard to cut some core charge down)
2) Take the pulley and the trust brearing off the z alt
3) Take the pulley and the trust bearing off the new alt. (It might not even have a trust bearing, it can be part of the pulley)
4) Got to local alt. shop to get a shorter trust bearing to match the pully to the original location. Or grind the z trust bearing to get the correct height (make sure the trust bearing stays flat)
5) Get a 300zx alt harness from a junk yard too. ( I guess you should do that while you getting the core)
6) cut the T harness from z and put the 300zx harness, solder.
7) Just replace the alt. (it's a direct bolt on)
8) After hoking up the 300zx harness, positive and ground, turn the key to ON position and see if the charge light comes on. If not, swap the two wires from T harness around and see if the charge light comes on. IF not still, I guess you need to as for help. lol