I've made a modification on top of Tomgr's third person mod (https://github.com/tgrkzus/wurm-thirdperson), mainly to address a couple personal gripes I had with it, but also with the intention of improving it further.
The camera now rotates around the player, instead of the floor. Stopped xoffset skewing towards the center when pointing the camera up and down. Doubled the maximum zoom out range.
Possible future improvements:
Save config (enabled, zoom level, xoffset) ?
One thing to note if you're coming from Tomgr's version: The toggle command has changed from `toggle tp` to `tp toggle`.