Budget 2 days seems about right. If all goes well you can finish in 1, but best to have that extra day if you need it. If I remember my first time, I think one side took about 6-8 hours and the other side took about half that. I did not spend as much time cleaning as most MUDers would, didn't paint anything, and nothing went catastrophically wrong (just snapped one of the bolts that hold the wipers on and left it that way to fix later).