My thoughts exactly!
However the only real issue is that mesh/bar is pretty darn hard to get by or expensive as hell, since they're only sold in 50/100 meter rolls, over here. The cheap ones with small enough squares/holes/masks/spacing, for dwarf, are seasonal so I'd have to wait until autumn. :/
Good cage ventilation is important to me as my apartment is, as preciously stated, quite small. D: