Reone has libraries to parse and load KOTOR resources, load modules and all objects there, move them around a scene. It has a render pipeline that tools can use (see the model viewer in the reone toolkit, for example). It doesn't support "editing" and writing resources back, so these functions must be added. It also does not have editor GUIs implemented yet (toolkit is very basic), as well as "interactive" features like moving an object with a mouse, etc.
It would be great if we can have this implemented in reone some day. It is a lot of work, but it should be straightforward enough. If you are willing to drive this effort, I can help.
