I have no idea where I got his slippers, sorry. I'm sure you have something similar in game already. He was made with Awesomemod's DisableClothingFilter config turned on, so his outfit is for all clothing categories. This SHOULD persist even in a download. Face was made with Awesomemod slider multipliers and Facial Sliders by Ahmad, which are necessary. He has a default replacement beard in these pictures.
Have fun. :D