greetings recently i have been looking for ways to prevent steam having control of mods installed to my game and i came across this site http://steamworkshopdownloader.com/ which i have tested with Skyrim,Torchlight 2 and Starpoint Gemini 2 and so far it appears to work tis also very easy to use:
1.Find mod you want on steam
2.Load mod page
3.Copy url
4.Past into site above and Download
5.place in mod directory