Simple Texture Modding Help

[SpoonyBardIV]

I'm trying to make a mod that replaces all of the turf textures in the game with the ones from Hamlet. The problem is, I don't really know how to make a Steam Workshop mod file that won't get destroyed whenever the game is updated. I know how to replace the textures manually, as in renaming the Hamlet turfs to what I need and then putting them into the DST folder, but as I said, that work is always undone whenever the game is updated. What I need assistance with is creating an actual mod file that tells the game to load the alternate textures that are in a mod folder rather than just manually replacing them myself. Plus, if I know how to do that then I can upload it to the steam workshop for all to use. Does anyone here have experience making a mod that just replaces the default textures with other, pre existing ones?