I'm building a dog box for my neighbour's 5 hounds (Walkers). Its going to fit in the box of his truck and have 2 main compartments. I'm looking for ideas to make it very functional but have as many 'cool' features as possible. Its welded aluminum exterior with wooden interior. Basically 4.5 feet long by 4 feet wide. Anyways, any suggestions?....comments?.. I'm starting from scratch and have full access to a fab shop. Thanks.