You can try create it, copy a page and start it new, maybe not similar, creating a menu page, with all linked texts, and creating a page for each one,
Look this page, for example, is custom page php is a 'news' like, but if you inspect it is not a news, is just a custom page with divs an links.
liombera.sytes.net
or like this one, was items listed on server,
Liombera RPG (http://liombera.sytes.net/items.php)
That's a items.php, maybe you have this page, try check it and maybe take the ' structure ' and delete lines searching in the database, and add customs
Take another example, this one with wiki, is a menu, and links to anothers pages,
Midhem Online (https://midhem.com/wiki.php)
Image on top, easy <img src="your folder", if is layout/assets/images .. then src="layout/assets/images/nameofimapge.png or .jpg"></img>
<p> Text</p> and then doing , took some time but is more good when you know how to customise a page ^^