Comment by solardev

You really shouldn't. Help him set up a Squarespace/Wix/Wordpress or similar that you don't have to maintain.

Anything you code, manually or vibe-ly, is going to become a pile of unmaintainable garbage in a year or two and either you're going to have to help him fix it then or he's going to have to pay hundreds for someone else to do it for him (if he can find anyone).

Please believe me when I say I've wasted way too many years of my youth trying to hack together things like that for clients. That way lies madness. Don't let yourself go down that path. It's not a good use of time and money for you or your client.