Worth checking out OpenMW if you've never seen it. Fully open source re-implementation of the Morrowind engine with creation kit for making full games and other non-Morrowind content. They've put a lot of emphasis on supporting all of the old code and scripts plus converting content over to new formats.
I always preferred the Morrowind approach to the general look of things. Elves looked more alien and less human to give them that other-worldly vibe that's lacking from their modern iterations.
https://openmw.org