i have made a custom force for the undead side (which doesn't use the haunted gold mine), and have also changed the base building unit from acolyte to Kel'Thuzad (living). in theory the ai should be able to see Kel'Thuzad as the builder and build a necropolis. but in trial runs the 2 Kel'Thuzads run round and get killed by creeps so far away from any useable gold mine! i have some screenshot of the ai command tool attached to the post, so have a look and tell me what's going wrong please.
(Sorry about quality of photos, couldn't do any better as screen dumping was not working)
(Sorry about quality of photos, couldn't do any better as screen dumping was not working)