As others have already pointed out, there are several good hbs's in nsw. I go to MHB, even though he is 200km away. He has exceptional beer knowledge, has a huge range of grain and hops (plus NNL fwk's), and a brewbook library that would make yer average brewer weep, and possibly lose days on his loungechairs reading through it. Several succesful pro brewers are the product of mark and his shop, and he is extremely helpful (plus gives us a place to do case swaps, and overseas beer tastings.) I have no doubts of the credentials of the brewshops you have listed, but you can't bag nsw when it has at least one, and it sounds like more, high quality brewshops. I have no idea on his prices, I never ask, but I have no doubts they would be very similar to the others you have mentioned, and the man will help with brewery design, any advice you need, really.
Surely some people will debate whether this or that shop is better, but if they look after you, give you the right advice and you are happy, then it cannot be a bad lhbs. The newy lads are very lucky to have MHB, in my experience.
T.