And 1 box set + extra bases easiliy makes 2 units of 3 each. The instructions tell you to glue all 3 "ranks" onto each base, but the front and middle 'rank' are more than sufficient to fill a base
Then you take the rear 'rank' and some of the spare Nurglings and put them on their own base. BAM! 6 bases out of 1 box!
If you are willing to do a bit of extra work cutting and pasting a few arms and horns, you can actually get 9 bases out of 1 box by placing each rank onto its own base.
But usually 2 units of 3 is enough for most players and the front and middle ranks kinda need to fit together.
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