[FurKids]

If you can afford Orijen, I know you have the budget to go out and invest in an adult sized 3-tier cage which costs around RM300 now. With this one 3-tier cage you can manage all 4 kittens in your room without having to move to a new place and without having your room stinky (believe me!).

A 3-tier cage is very versatile - you can partition it into 2 separate compartments like the 2 pics below or you can leave 6 inch gap at the side of the top floor for all 4 kitties to climb up and sleep/play/eat in the clean upper floor or climb down to the bottom poo/pee floor below. Put a very big heavy clay bowl for water (a heavy one prevents the bowl from toppling over during play and wetting the whole place).

I give all my kittens RC Kitten and the poo smells much less. Use shredded newspaper and change twice a day, throwing all the soiled things into the garbage bin outside your house.

You can raise all 4 kittens well this way if you are disciplined to do things efficiently this way. Keep them in the cage when you go out as well as when you go to sleep. Do all feedings in the cage, not all over your room to discipline them to go into the cage at regular times and have good feelings with the cage.