Hi I'm trying to design a case for 4 pumps and a raspberry pi zero w, so i have started to learn fusion 360, but I'm stuck on how to fasten the pumps in the case.

Could some one give me a hint or a helping hand?

Attaching a few pictures of the pump and the measurements:
20180320_204003.jpg20180320_204040.jpg20180320_204109.jpg20180320_204132.jpg20180320_204200.jpg