About half of the P4 punters are Aussies, and most of those are from ProKick Australia. I reckon there are teaching materials available, and I'd be surprised if there aren't some "consultants" available. I've not seen a lot of Aussie place-kickers, and I think that's because ProKick is Aussie Rules Football guys, who do shitloads of punting with emphasis on accuracy in direction and distance but little on kicking the ball off the ground. Place kicking is moderately important in Rugby, and the recent Rugby in the Olympics saw a couple of games lost because of missed conversions after trys. Most were missed from bad angles, and the angle is determined by the touchdown location of a try - the ball is placed perpendicular to where the ball is touched down. If the touchdown (no try if ball isn't touched down) is scored out by the corner, you've got a very bad angle for the conversion kick.
Interesting Rugby factoids: the successful try is 5 points, and the conversion is 2 points. The term "try" came because you don't get points until you touch the ball down on the ground, then it's a "touchdown". We should probably change American Football's "touchdown" to "plane break". The reason the "point after" is called a "conversion" is that the old rules gave no points for a try/touchdown, and you
"converted" the try by kicking the ball through the goal posts.