I'll give it a try as I always wanted something like that, but don't expect it to be here soon
Edit:
Finished a base version: "FCO Mounty"
Works as long as you get into a loading screen or do something like a /reloadui in the map.
You can download it here and via Minion:
http://www.esoui.com/downloads/info1866-FCOMounty.html