Sales writing in english on web development and SEO services

We are looking for a sale writer who can write the content (text only) for 2 of our landing page. The subject are: "Mobile website development" and "SEO for E-Commerce" These are the items to be addressed for both subject: 1) Why it's important 2) The result for the business (statistics if possible) 3) What it is? 4) How to do it well (we will provides the important item) 5) How we do it (we will also provide what must be said in this sections) 6) Keep in mind... (summary of why it's important + results and statistics) Each page must have at least 750 words. Except for the last 2 points, you need to do the research or know the subject.