Design one page website and do SEO

I have a domain : [login to view URL] I want you to build a website (one page) and then optimize the site to be on the first page of [login to view URL] for the following search terms: "safaris namibia", "namibia safaris", "travel namibia" I need the quickest possible time for it to be ranked on first page of [login to view URL] (tell me how long it will take)