If you are prepared for the possibility that they might have to be split up, then go for it!
I had three campbells who I rescued when they were about a year old. They have lived together happily up until then. With me, they lived together for about 6 months until they started fighting a little, which resulted in them being split into a pair and a single ham. I'm so glad I adopted all three though, because they seemed to have a great relationship together. It was sad when I had to seperate the one, but it was because the ONE was bullying the other TWO, not that the two were bullying the one.
Of course, with any pair or more you need to be prepared to split them, but I would go for it personally.
