Our two have a big two tier rabbit hutch which is within a small outhouse (about 8' x 3') which we have boarded made safe as their run.
Our also eat rabbits whenever we've shot some and have special ferrett biscuits in case the bunnies are being particularly difficult that week!
They love to play, give them plenty of tubes and toys. Make sure you handle them lots from day one ... it's not fun having one attached to your eyebrow as a friend found out! Keep their nails trimmed and their ears clean
We have a male and a female. Our first year we had the female injected so they could mate without babies. Our hob is now vasectomised so they can live together full time.
I can't see much point in you getting four unless your going to be out really often (more space needed, more food needed ad for small animals tey make one hell of a mess in their toilet area!). Our two are both workers (although the hob is FAT at the moment!!) and do a brilliant job. I also wouldnt be keen to work mine without ferret finders as it's gutting losing a good ferrett

With their house, make it secure and then make it secure again! The can get in and out of anywhere!!
Have fun - they're awesome pets to keep!!
