Building a professional website with e-commerce capability(repost)

I want to build a professional website for e-commerce purpose. The website will be initially modeled based on an existing similar website and edited from there. It will be helpful if the person doing this job is available for periodic phone or in-person discussion to get the right product. The website will need: 1. ability to collect credit cards but available free for sometime 2. show up at top of the search list 3. accept profiles and photos, data etc from multiple users worldwide