Map
by John CalvinI placed some of the cities that you mentioned onto the BC 2300 map I'm working on. Theliir is on the site of Tel Akbir. Isshum is near to the location of Surra-Man-Raa, but not directly over the site. I also placed unnamed cities based on your Locations post. Let me know what you think about the placements.
As an aside, it's also quite clear that any living in Theliir would probably survive a mega-flood mostly intact.