MCN is mostly only available online. There are a few IRL stores and if you are in Qld and nearby then there is thenappybucket or nurturenappies who are online stores but may allow you to visit and see. If you visit their websites you will be able to ask them from there.
Another way to see IRL is to have a babybeehinds demo which are great because they come to your house. You can find details about that at their website also.

HTH