Bill B: Good guy report!!
Bill provided me with a new ZF and modified it with matched synchro springs and by opening up the oil galleries (to assure the reverse gear does not starve...again...a common problem with the ZFs, accoring to Bill).
I got the new transmission, all the work done and shipped for $2650 (ish). His web site has a ton of good info, not only on the ZF, but on the clutch maintenance and repair as well.
check it out -
http://www.zfdoc.com/faq.htm
P.