You can absolutely do that. If you want to upgrade to a paid plan to get some of the features you want, then you can switch at any time through the My Products option in your account or with the help of a GoDaddy Guide. Once you upgrade your site will have all the same customizations and work that you've already put in place, just with the added features. See Website Builder plans and pricing for more info.
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About.me and Flavors.me are examples of nameplate services. You simply upload one big photograph as the background for your personal webpage, then artfully overlay information and links to create your digital nameplate. These free sites help you pull images from your social networks or from a hard drive, then provide the tools to make the text and links work unobtrusively, though it really behooves you to check out other personal pages for an idea of what works. HTML Full Course - Build a Website Tutorial