I am in the middle of trying to build a permanent home for my silkies. I will have approx. 6 in one run (maybe 8) depends how many end up being roos. I was thinking of getting a rabbit hutch (prob about 2 ft wide by 4 ft long) and making this into a house for them. My question is are silkies smart enough to use a ramp to get up into and back out of a house, or will they just sleep under it? Will that be a big enough home for them? What is the minimum size run they would need?