Space in my house has been a big factor in deciding what cages to get too. In fact I initially managed to find space for one hamster and cage then she has surprise babies so I have done well to squeeze in 2 more!
I think a zoozone 1 will be more than fine for your dwarf pair though. However if you are feeling guilt now then won't it be worse if you have to look at it every day.
I really do think that the zoozone 1 will make a fantastic home but you have to decide if you will be happy.
