I have an old Holden transmission in good condition.  The local transmission shop says it will fit all "F" models and most "E" models.  It has the following numbers and letters on it: "Holden"   "C 5"   "7"  "7409980".  I have a photo I can email if you're interested.  Available from Toowoomba, Queensland.  Email kly16510@bigpond.net.au.