I don't have time to help with this project, but i can offer you my texture overhaul for Skyrim called "Skyrim Realistic Overhaul".
Video of early version:
It's a huge texture mod, around 10gb and over 1700 textures. Texture are professionally done. So feel free to use them. I'm also 3d modeler and level designer, but have moved to commercial project. Also huge Oblivion fan.
My S.T.A.L.K.E.R. 2 level concept in Cryengine 5.