My Blog also declined by adsense. It is not fair. They must tell exact reason for rejection. May be my blog is not more than 1 months old, but the reason must be clear.
I think after 50 pages that's the best time to apply for Google Ads. But that's not a matter for some times. One of my friend get Google Ads with he has only 3 or 4 pages on his site. Google only approve ads for blogs or website after 6 months if it is from India or in China. I think your site is from Australia... Do you have an about us page?
I have the feeling you left something out of this all, google has it's reasons to decline you, what country are you from for instance? And how long has the site been live?
What is the purpose of applying now, if you don't have enough traffic to make money from Adsense? It would be better if you would just keep building your site and grow it until you have enough traffic. Probably that time, you won't have any problem applying for Adsense or any network.
Wait for 2 more month. In the mean time, increase your site's appearance on the net with some more quality content. Try to update your site at least twice per week.