Leveling while grinding factions

[Boombha]

I just made a DE Necro to have a "different' EQ experience every so often.

Can DE Necro's go to places like the troll or ogre cities? Can they go to Kunark cities? or do they also KOS there and need to build faction?

I guess I naively thought that all evil races could go to the evil cities.

What about random merchants in EC or Oasis and such (noncity)? Indifferent or KOS?