Convert website to Wordpress

We want to convert our website to wordpress. We are happy to pay for a premium theme if it makes the process faster. Our goal is that the website is easy to edit in the future, the current platform is difficult to edit pages. The website is [login to view URL] We need a shopping cart, which we will purchase. Here is a summary of our requirements: 1. Developer to source wordpress theme, premium OK. 2. Shopping cart (we will buy a cart to integrate) 3. Preserve current format, links, menus etc as much as possible 4. Multiple submission forms, captcha protection 5. Submission forms submit to Mailchimp list Please feel free to ask any questions.