Hello. I am looking into getting guinea pigs for my 10 year old daughter. However they would not be able to live in the house as we don't have space. We do have an unused outside playhouse. So I plan to insulate the ceiling and upper walls with polestyrene(out of nibbling reach) then put the hutch inside with insulation over it. What else would I need? Maybe line the floor and lower walls with chicken wire to prevent nibbling through? Also I have seen another post about this but no rescues I have looked at will allow outside living so is Pets at Home our only choice?!