Permission for a Sub Mod im working on

Hello everyone. This is my first post here, but i have over 1000 hours to this mod (rookie numbers i know). This post is for just one thing. I have been working on a sub mod for Essos and Daenerys as Empress of Ghiscar, i have posted some of my updates in reddit (i wont put any link because i dont really know if that is allowed here?) but anyway, my point is, the mod is, i would say, 3/4 done. I have seen one pinned post on the "sub mods" thread that tells we should ask the main AGOT mod team and others modders if we are gonna make a sub mod for this game. 

This is why i made this post, before uploading my sub mod only to be taken down, i wish to ask what is the way to ask permission to those people. I suppose the main agot team may be here to answer me, but, for example, my mod kind of needs more bloodlines to work, so i figure i should ask the creator too, anyone knows what the best way to do so would be? I dont want to start any conflict, in fact, i enjoy that sub mod so much it is kind of the reason why im making my own in the first place.