Bit of a ask, but after seeing Hazlan's facelift..
Could Har'akir get a look over, I know it was designed as a dungeon domain with little fixation on the lore as it can't be kept authentic BUT-
-Have the domain like the mists, they change, going in a specific direction will lead you to certain destination
(Example: North leads to Village Muhar/Harvest, East leads to Anubis/Trolls, West leads to Oasis/Sobek, South leads to Vistani, Thoth/Ra being random
-Have a number of random maps which may be empty and desolate, monster encounters, lore, blocked by wall of ra, name these all the same so it causes confusion
-For additional hardship I would favour heat exhaustion to cause movement speed reduction, -ab/ac