Thanks for all of the input. I just let go of the cash and bought the 600 series Tilton release bearing kit. Two part numbers. TIL-61-621 (summit) and 61-604 (summit). These will be mounted to a TKO-600 Tranny mounted to a lakewood bell housing.
If you are considering one of these bearings, there are two bits of info Tilton will need to match you up properly.
1. Distance from the outside edge of the bellhousing (where the tranny mounts) to the diaphragm of the pressure plate.
2. Clutch disk diameter. ( I have a 11" disk)
I spoke with Kirk and he was a tremendous help.
http://www.tiltonracing.com/content.php?page=hydraulic
Kinton