It took my a year lol, from random move ins that ruined it and Dreamies that moved out or I hated so it took a long time lol but I usually put the pwps in certain areas so it's easier to plot reset so like 40 min for a house plot to be perfect, the longest was fauna.
I can't, since I'm already resetting - can't boot up my mayor or anything. :c I wish I would've but I got her fairly quickly so didn't have a chance to before I picked her up.