won't go in gear

This still does not answer the question of what has failed. You had a beautifully functioning assembly, what changed? I'm not trying to confuse things, just asking the question. Your input alignment and bellhousing fit did not suddenly change. How deep are your flywheel fasteners below the face, how does that compare with the reach of the clutch hub into the flywheel? Could the flywheel bolts be hitting the hub of the friction disc? New or used flywheel? Did one of those little finger blocks get stuck in between the wheel,plate or disc?