Slightly off topic, but can't resist. Personally the first mod I would need for an elder scrolls game is one to make the gameplay actually fun
Base game has that functionality, actually. At least in Morrowind:
1) Get a really powerful mage character (you can just take alchemy and merchant as primary skills and be high level by the time you leave the second town, if not earlier)
2) Craft a spell that gives as high a +jump as possible with a 2 second duration.
3) Climb to the top of the pyramid in that big city near the river (Vivec, iirc) and point towards the city on the other side of the river (Ebonheart, iirc)
4) Run towards the other city, cast spell, mash jump button.
There, whatever the result, you had fun
(though you may want to mod out the cliff racers or whatever they're called first)