The V6 doesn't have a pilot bearing. Don't have a picture right now though. Got an LUK clutch assembly from Rock Auto does have the alignment tool (haven't installed it yet). Could measure it for you if you'd like. Flywheel bolt are one and done,,, pressure plate bolts can be reused.
https://www.rockauto.com/en/moreinfo...308745&jsn=448
Couple of LFX Miata swaps talking about it...
https://www.miataturbo.net/engine-pe...9/#post1312794
https://www.miataturbo.net/engine-pe...0/#post1312803
https://www.miataturbo.net/build-thr...0/#post1409726