Hello, I'm sorry for my a bit belated answer! It is possible to walk around the museum with the stick, although the museum is not fully obstacle free: there are about 6 steps down that lead to the cashier and the first floor of the museum and stairs to the lower floor. Unfortunately there are no disabled toilets... The reduced price (students, seniors over 60 years old) is 120 czk, you don't need a passport to get the reduction. For disabled visitors we offer reduced price 70 czk. Hope it answers all your questions, let us know if you have any additional ones. All the best from Prague!