See what creation my son has built for a customer who is a dog lover. It is a purpose built animal trailer that actually goes on the front of the camper (which slides on the back of the trailer) Fully removable. Never have I seen anything like this. aww See more at on his video about the dog trailer click this link https://youtu.be/jmpvsXHLxPU

I have the same, look at my Avatar on back of truck fully insulated for the most extreme heat or cold. I note in the photo a Kelpie dog. I also carry Working Kelpies which can be worth several thousand $ each. I would not consider anything but the best for my "mates" and it makes it simple to leave them in a safe secure compartment when the need arises while travelling and they must be left alone at times. Not a case of more money than sense but protecting an investment and more responsible than leaving animals in hot vehicles and RVs. 

Cheers Allen

True true

You have a great looking set up Allen. I agree, you have to leave them sometimes, better to have them safe and secure