Assemble one crib and dis-assemble another one

Newton family needs help replacing an old crib with a new. This task involves taking the pieces of the new crib upstairs (we will help if necessary), putting the crib together according to the instructions (we will provide tools), taking apart the old crib (we will provide tools), and moving the pieces of the old crib to the attic (we will help if necessary). I would guess it might take up to an hour for both, since it's probably easier to take apart a crib than put it together, but I'm not sure. Must happen during the day, weekdays or Sundays.