Copywriting for website redesign

We have contracted with a team to handle the technical side of creating a new corporate website to showcase our company, but quite frankly we just do not have the internal resources to handle the crafting of the message, creation of text, layout, etc… That is where we were hoping you could step in. This site is meant to be informational rather than transactional. Sections would likely include, Home, About Us (who we are, what we do, how we do it), Product Lines (page for each of about 7 or 8 lines), Contact. We want to get our points across with a paucity of words through the use of high quality writing, layout, and design. We do have some source material that includes detailed power point presentations we use to introduce our company as well as individual product lines at customer meetings. We also have a few pages of copy that an internal resource threw together. None of this however, is fit to publish to the web. Specifically, we would like you to take our source material, interview us, and then with minimal guidance and in conjunction with the outside technical, team be able to provide us with a fantastic finished product.