Well i bit the bullet today and got my plates - they arrive in the mail in about a week
thanks for all the good suggestions from the other thread - Ill pass over the other less clever ones though
Ended not getting 4 paws - way too expensive to try and get - and gt4sum was a no go which annoyed me
Ended up getting plain Old " ST185 " and got it Cheep ! Didnt think it was available , seeing toyota usually pick up those sort of plates - but after a little talk to a good friend at vicroads - they were able to secure it for me - YAY!
So - Dyno day will see my Gt4 with the group a Bumper ON - getting that this weekend if all goes to plan - and " st185 " on the nose