The chimney does not extend into the upper floor yet, so it really is a recent "crazy idea" in the sense of: Oh, that would also be nice! Right? Then I would leave it out. You have the seating area at the kitchen island, the dining table, the living room... I don’t know if the area around the chimney would even be used?
I also think that 5 showers in the house are excessive if there is one in the basement as well, so I removed the one in the guest bathroom. Therefore, my suggestion goes in the direction (without having taken measurements into account, so whether the stairwell opening is enough for a landing, whether children's room 3 would then be the same size, etc.): [ATTACH alt="eg1.png" type="full"]47160[/ATTACH][ATTACH alt="og2.png" type="full"]47162[/ATTACH]
Although you do produce a lot of hallway space upstairs, as I just noticed...