Vibration in engine- help!

Thank you again everyone.

No, I don't have a timing light, but I can either go buy one or have my friend around the corner check it. I would have checked it by now if I had one, or the time to go get one.

Looking at pettybludart's pic it looks like the outer ring is really off. Mine looks fine, like it has not separated anywhere, and it doesn't budge at all.

This is a new one for me, so forgive my stupidity- I need to check it out asap.

To date:
Got the cap/rotor today- no effect on the vibration.
Input seal on tranny is leaking, grease on fork and bearing, clutch does not slip.
Input bearing on tranny- clutch disengaged does not stop vibration.
Spun bearing- oil clean, really clean actually.
Bellhousing bolts tight.
Throw out bearing- not 100% sure but it appears to be ok.
The Z bar bearings and pivots were replaced last year, movement feels the same, vibration is felt when I take off, clutch seems to be engaging higher up on pedal.
Balancer? Hopefully checked out in the next few days.

For what its worth, the vibration is more pronounced forward of the front wheels, and barely present in the engine itself- my guess is its transferring most of the vibration to the car.