My son (age 11) and I really want to go to the top floor of the Eiffel Tower at dusk/night. We also want to take the stairs to the second floor; however, the only way to purchase such a ticket is the day of at the Tower. I want to guarantee our entry and I am wondering if we can buy the lift access ticket to the top, but then skip the lift to the second floor and take the stairs. I see tours that offer this, but I don't want to pay those prices.
(p.s. is it safe to assume we can get a cab back to our lodging at night from the Tower?)