You can draw them yourself, or sketch them live in the VTT
While I can't point you at anyone who published 2D versions of these maps, it is pretty easy to use a generic drawing program (or even specialized software like Campaign Cartographer), to draw these maps yourself and upload them as image backgrounds into your VTT.
You need not even do that. Most VTTs have drawing tools, that allow you to draw room outlines on the grid as you go along. We have been playing several campaigns like that using adventures from earlier editions, because they did not come with pre-made digital maps, and doing this was way faster and less hassle than setting everything up in advance buy creating, scanning, uploading and scaling maps, and not much slower than unhiding an existing map either during play. It also leaves more room for theatre-of-the mind descriptions than if everything is painted out and nothing is left to the imagination.
Think of it as the digital analogue of a real-life battlegrid with dry-erease marker, which has for us proven more flexible, faster and simpler for play than elaborate efforts to build versions of the dungeon from Dwarven Forge or painted Styrofoam or Lego walls.
Feel free to use different gods, if you have more fun with that. With more abstract maps there is no problem in doing so. The Egyptian pantheon however is fully compatible with "modern" 5e D&D. It is listed in the PHB on page 297, and its gods and godesses are listed on page 299, including alignment, domains and symbols.
(Btw, I like these isometic maps -- they look very much like the cut section drawings of the original pyramids. It's a pity that they are not useful in a VTT).