The awesome Rokenze set up Letho's clothing for Geralt but it was made as a replacer and never released. I loved it so much that he was kind enough to give me the mesh files so that I could turn it into a standalone armor set. I've given each item the stats of the mastercrafted cat school and they are Medium Armor items that allow for a total of 7 glyph enhancements. Enjoy.

Add the items to your inventory with the following console commands:

additem('Rogue Witcher Armor') 
additem('Rogue Witcher Pants') 
additem('Rogue Witcher Gloves') 
additem('Rogue Witcher Boots') 

The outfit is not set up for NG+. If someone wants to tweak it to allow for NG+, please feel free to do so, send me the file, and I will add it here and credit you.

Special thanks to ScoutBr0 for solving a problem.