I’m surprised you can’t get around this using Google Webmaster Tools, which offers four different methods for verifying site ownership.
Also, Google CSE seems not to care about ownership – you just add the site to the list of sites to search.
However, given the amount of time and the number of factors that go into getting a good grade on Google, I would think that using Google Search would be extraordinarily ponderous and time-consuming to use for this purpose. There are any number of SEO helpmates available. It seems that a better approach would be to get a custom domain name and put up a site, then fine-tune it to improve the SEO as you go along. In the same time that it will take you to get Google Search to recognize your site and return any kind of useful information about SEO, etc., I’ll bet you could have a fully-functioning site and at least three iterations of SEO improvements.
My two cents.