Jaiysaun

No other mods are quite as much of a mixed bag than the LGNPC mods. They add unique dialogue and quests to vanilla NPCs, but the quality varies wildly even within each individual plugin. A lot of it is great, and a lot of it is downright terrible. I've used some of them with every modded install I've assembled and I've often recommended them, but not enthusiastically. I suggest using the dialogue only esp in place of the Vivec Redoran, Vivec Foreign Quarter, Pelagiad, Hla Oad, Maar Gan, Khuul, and Seyda Neen esps, but only because the Vivec quests are always bugged for me and Pelagiad is... not handled as well as it could be.

Best imo: http://www.nexusmods.com/morrowind/mods/43008/? Uses pack guar mesh though. I think there's a way to catch wild ones in this mod but haven't tried it. Works with Melian's Teleport Mod.

I've been using MCA with Morrowind Rebirth for quite some time now and the incompatibility issues are never troublesome enough to really bother me. You sometimes have NPCs spawning inside the walls of the new buildings or sitting in chairs that aren't there anymore, but that's about it. I haven't read of anyone else's experiences, though.