Perhaps a better way to phrase the question would have been, "can anyone point me towards a good place where I might get training for...'
Mind you after 3 yrs in the Ag industry I would have thought you'd have met about everyone in it
PB in Oz a tailwheel endorsement is just that...not merely difference training. I think just hopping into a taildragger and hoping for the best might be a good way to trash some nice aeroplanes.