When I rescued my two boars, They had come with a two by three c and c cage. Now I know that that size is way too small, especially for males, due to their territorial nature. So I want to inovate or upgrade the cage somehow. my only problem is that my cage at the moment sits snug in a corner on top of a shelf. I was think either we make an outdoor shed or we can make a leveled cage some how. Any ideas on how I can expand their cage.