Here is my resto:
http://aussiepinball.com/index.php?topic=410.0

Decals are not great but you can pick em up for about $300 if you need to replace (or you can make some   for personal use of course  )
I picked it up for $3000 a couple of years ago, was working 100% just needed a good clean up.
Should be able to pick something like this for around the $3500-$4000 mark.  I haven't seen many unrestored TZs around lately though