Kara picked a room that wasn't taken, more or less at random and claimed it by putting up her pictures and hanging her CDs like mobiles.  The central picture was one of her and her family infront of a sign describing the Chilkoot trail and the suggested list of items the prospectors should bring for the one ton of gear they were required to take.  She takes the pencil and papers and heads down to the engine room and begins making engine designs.