Late last year, after they restored shadows (I think they'd had to take them out while fixing some stuff, or something) I played most of Morrowind with this. Still intending to go back and finish. Finished the main quest, a huge percentage of the side quests, and Tribunal. Was just getting ready to start Bloodmoon.
What works: everything. Everything I tried. What did I try? All the parts of the game listed above, plus 20-30 plugins, including one obscure library plugin that's not on Nexus. Used Mod Organizer2, IIRC. No problems. Worked great. Know what's amazing? No crashes. Not. A. Single. One. Anyone who played Morrowind back in the day remembers all the crashes. So many, even with stability mods and later versions of the game. This? Rock solid.
What doesn't: plugins that patch or wrap the Morrowind .exe file. That's about it. Oh well.
Bonus round: you can crank up the view distance to fairly high levels on even a medium-good rig, much farther than in the original game. Definitely improves it.