You know what your keywords are and you know who the market is. It's time to structure this information into a Site Plan, before you start creating your website.
A good Site Plan will not only save you time when updating your content and make the website easier for visitors to use, but it will help you organize how you would like to optimize each of your websites pages.
Draw up an idea of what Headings you want and a rough idea how much text you want on each page.