Good Work Mattai! This [WIP] thread is very thorough. I like that you listed the authors and mods into two sections, but I'm sure a few PMs a day to the authors and you'll have all the permissions you require!
You may want to consider narrowing your list for release. Firstly, there is such a thing as a mod that is too big! You will need to add all of the textures and meshes for the armors and weapons to a single location in your Data folder for your mod. The result, I suspect, will be a huge mod, but you won't get a feel for the size until you start adding things in! Secondly, you want to see the project actually release. You don't want your list to be so much that you never get there. You have quite a few RL obligations (congrats on your engagement!) so you want your project to be feasible for you to complete alone. The chances of finding a partner are slim on any project.
Instead of aiming to release a huge mod that includes hundreds of things in new locations, you might consider choosing about 20 of your favorite mods to start with. I suspect, even though this number of mods seems small by comparison, that you will still be adding quite a bit of content to the game; especially if you add any new characters or locations. That way, you can reasonably learn the skills needed for this project and release a polished complete version in only a couple months. Then if you choose to, you can continue to add to the project and release updated versions with more content as your time permits!!!
Just a suggestion!
Oh, and I enjoyed the use of the word skeletally!