I have 3 large dogs - two flatcoated retrievers and a shepherd mix. Until fairly recently I had two dogs and the hatchback boot of my car was fine but now its too cramped for all three and I have bought a VW caddy van. I don't want them rolling around like nine pins in the back of the van and need to get it kitted out / crated up with fixed crates. Anyone done the same and who did you use?