guinea pig grouping???? help!?

  I have an 8 month old female guinea pig, she lived with her sister but her sister recently died. I have since bought 3 female guinea pigs who live in another cage. I was planning to take one new female out and pair it with the 8 month old female but I have since had the idea of putting all of them together. I have introduced them all 3 times and all seem to get along, Should I put them all in together or just have 2 together in one cage and 2 in another ????? ps-the new guinea's are 11 weeks old.
My only concern with all 4 together is if the cage is really big enough for 4 of them to all have the privet space and play space they need.It would be much easier to provide that with 2 and 2.
If you have a wide C & C cage you may put them in the same cage, but on seperate levels, and let them pair with eachother and establish "territory" . If the cage is a small one then put 2 in one and 2 in another.



This is a nice website for big cages (:

http://www.guineapigcages.com/photos/index.php
I'd put them all together. They would need two very large cages for 2 pairs, or one very large cage for all 4. Here's the math:
pets question and answers,www.5d2d.com


Initial pig in each: 8 feet.



Pair cage: 2 cages, both 10 sq. Feet.

Single cage: 1 cage, 16 sq. Feet.
How about you pair them up and mabye add the other two a bit later on. Here is a VERY helpful website i LOVE: http://jackiesguineapiggies.com/piggycare. html
If the cage is big enough, yes.

But if you but them in different cages, make sure they can come out and play with each other often.