Once you have figured what you need on a website you'll need to build one. There are lots of tools to help you build your website. One you may not have heard of but should consider is www.squarespace.com . It's simple to use, easy to get started and helps you create attractive sites that work well straight out of the box.
An added bonus is that it integrates with commonly used apps, allows developers to inject code to add more functionality and is New Zealand friendly when it comes to ecommerce.
Here's one review to get you started considering options.