If you do plan on doing a MOS, then I suggest you do this:
Use the Enhanced submod, with the fix (YB version) . Implement the New Skins submod by Prophet, including the Lannister remodel. Add traits and ancillaries for all Lords, like in FaB . I suggest less settlements, but you should use some settlements who were in FaB. Use the settlements in places that are generally empty
Add some stuff of your own, including the KG which you are doing. Would love it if you added some of the campaign map units skins from Korah and added some of your own.
I think you should add the FaB units, and implement most of them if not all. One thing about them, change their recruitment pics: they do not fit the rest of the recruitment pics.
Add Toho's and the 1.0 version team's unit skins they gifted to the submodders: they look real nice, and should lift some work from your shoulders
I say add the sept and Heartree/Weirwood building pics from Korah, should add some sense into the game
All in all, if you put all this together, you would get one bitchin submod

. I personally think it will be great
