Also, for maintainability - if you're freelancing and plan on handing this off to someone unknown later, I would err on the side of being conservative, and if i

Also, for maintainability - if you're freelancing and plan on handing this off to someone unknown later, I would err on the side of being conservative, and if it turns out that an SPA is what you want to do, then go with a really widely-used framework like React or Angular.