Sanctum Sanctorum Modular
This is a mod of set 76108 that I made to fit the modular building standard. I posted this on Bricklink's gallery over a year ago and the Studio file is available for free. I finally got around to creating a nice instruction manual and it is available to download here for free. I included an xml file for all of the parts as well as an xml file for only the additional parts you will need in addition to set 76108 if you own it.