Every clutch shop has alignment tools, if not free, at a minimal cost. It's just a short piece of splined shaft (made out of plastic) that enables you to center the clutch as you gently tighten the pressure plate. Don't mess around if you don't have one, get one. It truly is worth it.
And yes get some Locktite on all bolts, the flywheel bolts and on the pressure plate bolts even it there are locknuts. (Added insurance) then torque as per shop manual.
Denis
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