For a 1.3-1.4 you'll need...

1.10gal tank, lab cages (2), or tub
2.water bottle(s)
3.bedding (aspen)
4.food (bird seed, mice blocks or sometimes called lab blocks, or a mixed diet)
5.place to keep them that you wouldn't mind the smell and mess
6.knowledge about mice and how to breed them

Before you go out and buy a couple of these guys do your research on mice and how to breed them. Google helped me a lot and also youtube. I have been breeding mice for about year now and it can also make a very nice side job.

Happy breeding