Why not static HTML files? I can't find anything on your site that justifies server side processing and in this sense you might be over-engineering. This is your call, though!

Your site is currently a three page site and while I appreciate unrolling would cause a little bit of code duplication, I wouldn't say it's enough to lose sleep over. In fact, you could just make it into a one page site, which might be a perfect fit for what you're trying to achieve.