clutch kit compatibility

[Options13]

alright i did search and found out that 89 - 94 240sx clutch kits are exactly the same, but 89-90 and 91-94 have different release bearings correct?
because i traded my rc car for a exedy clutch kit that goes to an 91 but my car is an 90.. sooo... should i just buy a new release bearing? which will cost me around 20ish, and as for alignment tools.. would i be able to just buy something like this.... http://www.autopartswarehouse.com/se...294967008+6941






or do i need an exedy alignment tool?






heres some pics of the clutch kit to be sure it is a 240sx clutch kit