It really depends on how many neighbours you have.
If you had ten neighbours, and they all sent you gifts of a 'maison' piece each day, you could finish it in 5 days if you were lucky. You can use this formula to help you work it out: (m/n=d)
m = amount of maison pieces left ~ n = amount of neighbours who will send you a piece everyday ~ d = amount of days to complete ~
I hope that solves your problem.