Should be OK one. By the time u are boarding monorail is already 10.30 or later. If the luggage is too much a hassle, u can get those large locker in Ueno to store them when you go for your museum. Or leave them in your hotel if it is along the route.
My airbnb is in Shinjuku and can't deposit luggage in noon. I planned to deposit bag in Omiya since I have to get out of the station to change to another line. If Ueno, just change of platform right?
My main question here is what pass can I make use of? Confused..