Please, just make <info totalconversion="1"/> in mod.xml available! It will solve problems about over/underpowered skills/items and maybe even inventory problems! We can help ourselves!
You can help yourself by modding directly the xml file of what you want to change. Basically totalconversion="1" is just to upload conversion mods here or on the workshop, without making users change their databases.
It's pretty self-explanatory once you look at it. And you can always make a backup. I'm not a very technical person, and even I can manage it.
If you got the game via Steam you have a pretty straightforward "undo" function as well, just verify the game cache.
