Redesign existing html sales page website SEO friendly

Hi, I am looking to redesign my current sales page website to make a more professional, clean, clearer sales pages with strong SEO friendly copywriting. I am happy to keep all current features on site, images and headlines but i want to sales pages to look sharper. This project also includes new copywriting all existing text on the page using strong SEO keywords relevant to the subject matter. I need the text changed by at least 50% including testimonials. I want relevant keywords on site to stay, but surrounding text mostly changed. i will give further instructions to winning bidder in regards to what to keep and what types of keywords to give more weight to. site needs to be in html so i can edit it later if i need in dreamweaver. site is [login to view URL] thanks