60 Sec. animated explainer video

I need a simple animation that will help me pitch my marketing campaign for my ned multivendor e shop. Same as this one from eBay (but a few minor changes): [login to view URL] I will provide a little script that needs to be followed. More detail and content will be provided after I select the service provider. IN ORDER TO SELECT A SUPPLIER I WILL NEED TO SEE PREVIOUS WORK AND ANIMATION DESIGN STYLES FIRST PLEASE.