I've just set up a run for my pigs that is 18ft by 3ft, and in it i was going to put 2, four foot, two storey hutches, is this a good set up for 8 pigs? Could it house more or should it be less? They will have free access to the run all day and just be put away at night, in whichever hutch they prefer, i thought with so much floor space, having more hutches for sleeping would be good.. Also i'm not sure if this will be suitable throughout winter, if there are so many cuddled together and they are in a sheltered part of my garden, possibly with hutch covers, would it be ok? Any opininons greatly received before i buy the hutches!