RBBM: From memory that monitor was visible from the top (third) floor window on the west side - so I think KG's room? I'm sure there's a photo somewhere in press album here that will confirm that with a whole-of-house perspective. (as an aside, I think the three windows on third floor east to west were floor three bathroom, hallway and KG's master bedroom.) Moo
I think the Good Vibes sign was on second (middle floor) in the living area - close to the little hallway on that floor that leads to the stairs up to floor three (south), the kitchen entrance (west) and DM's room( east). The Daily M article indicates the Good Vibes sign was in the living room and I'm almost %100 certain that I've seen photos in the press album thread here to confirm this. Moo Can re-post those when I get a chance
EBM spelling x2
Google Photos
photos.google.com
Link to show monitor in window of what was Kaylee's room.