Change / update website text content

Looking for copywriting professional for fairly simple project. We need a professional writer to slightly modify text descriptions for us and all other text areas with explanations or highlights for current sight, keeping the descriptions keyword rich and related to the product. We need this for all pages where there is text explaining the service or systems. The actual individual hardware items descriptions do not need to modified, specifically the page that shows all the individual hardware pieces and describes them, those don't need to be modified. This is probably no more than 4-5 hours of work max for an experienced copywriter. Summary... 1) Modify text just slightly in all sections, needs to be keyword rich and SEO focused. can be close to the same with more keywords and slightly modified so when loaded on sister site those pages are cached and indexed by google as original content pages. Doesn't need to be modified much, this is for a sister site to be launched to offer additional promotions. 2) Timeline: The work needs to be completed by this Sunday afternoon at 2pm pst. 3) The Site: The site is vivintsource.com.