As a previous employee of one of the outdoor stores in Perth, I could hazard a guess that the lack of CAWA guides is likely to be the result of them not ordering stock. Not sure how you feel you can blame CAWA for that.
I don’t think it’s up to CAWA to go walking around ramming the guide down their throat.
All of the stores are happy to get stock in for you if you simply ask. Especially as you know exactly what you want.