When I did the swap I bought clutch, MC, SC, hose, fork, throwout brg, pivot ball all new on rockauto. I think it was all LUK except for the pivot ball. My reasoning was if it was all one manufacturer I would have the best chance of everything lining up properly. It did.
Good idea. The throwout bearing must match the pivot arm and the pressure plate, or the linkage won't have the right range. I reused old parts on my NV4500 and wound up with a mismatch. Wound up adding 1/2" to the length of my slave cylinder pushrod (the pedal was only going 1/2-way down and then the slave would run out of travel).

