Convert WordPress Site to Static

I’m ready to swap my current WordPress installation for a lean, fully static HTML build so the site loads noticeably faster. Everything that visitors can do today must still work tomorrow: every post in the blog, all image galleries, and each contact form... (Budget: ₹12500 - ₹37500 INR, Jobs: CSS, HTML, JavaScript, PHP, SEO, Web Development, Website Optimization, WordPress)