The original C&C cage we built for Turbo was built shortly before we decided to get him a buddy. His cage was too small for 2 boars so we rebuilt and I think they are very happy with the results. I plan to add a hay rack and water bottle to the bottom level. The original plan was to build a bridge/tunnel between their spaces "upstairs", but they seem to enjoy it the way it is for now. Lots of running and popcorning. I gave them a buddy bath last night and when they were dry, put them in their new cage...I think they forgot all about the trauma of the bath ;O) (Which went very well by the way).