Kiwamu had a DC Power Supply box (D1002932) he wanted installed inside the IOT2L.  After ordering a few parts, I went about installing the box; this required installing support brackets.  These support brackets required moving the entire internal cable tray a few inches toward the doors (which isn't trivial with all the cables cable-tied down).  After a bit of grief and sweat, the box is installed and ready to go. 

Pictures for IOT2L are in ResourceSpace here.