Posted: 21/08/2017 at 18:27
The surface doesn't need to be super smooth, just make sure there aren't any dips which the turf might bridge over. The turf does need to be in firm contact with the soil to root.
As long as the slope isn't too severe laying the turf shouldn't be too much of a problem even for amateurs. There are lots of guides to turf laying on t'interweb. The only tool required when actually laying is a good sharp knife to cut the turf at the edges and when one piece will overlay another over the curves.