Website + Store

I would like to open on online store for knives. I already have a domain purchased.

1. I would like to have a section where to offer new knives with 6-7 pictures and back end interface to easily upload pictures and description
2. Section where to offer used knives
3. Section that will explain the return policies, warranties and overall terms and conditions
4. Section where We will offer clients knives.
5. Section where we will upload pictures from Knife shows that we participate/visited
6. Section with our merchandises
7. Section with hardware/accessories for knives.

I can provide some examples with website that I like.