You can get a ready made Blogspot template for free which solves your problem. I found one such template whose name is Kompi Design with Google AMP Blogger template. If you still want services of a freelancer to convert your existing HTML page into AMP HTML then I'm willing to provide my services.
About Me
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I'm a Full Stack Web Developer. I have experience in converting HTML pages to AMP HTML. I also am well versed in modern web technologies including HTML5, CSS3, JavaScript, XML, JSON, PHP, and MySQL.