That bad this mod looking great. Like Used2broz tried geomod and bare geomode with just vanilla basic files to test your map. If it dont even start than you know it something with your map. After add thing by thing. And if it crash with geomod it a good sign it will crash on the game too. It even have a debug tool in geomod for invalid location of ressources, port. It help alot and to work the map it really easy, you can even switch between region, height, terrain with just one click. And even paint like a layer. You can add a lot of basic thing real easy too like city andgeneral. Finaly you can almost do a working mod just with it!
I will say keep the basic thing and add them with Geomod it should not very long if the map work.