Another offroad design

I just bought a new 4x4 FJ Cruiser and need a trailer that is small and very strong. The truck can tow 5000lbs but I don't want the TD it to be very big since I'll be taking it offroad. Here is what I've come up with... Let me know what you think...
Also, how small is too small? (with reguard to TDs)
The current design is 4 feet tall, 8 feet long and 54 inches wide. I feel like I'm really struggling to get everything into it. I MUST have AC and Heat so I can get more use out of it here in Texas. Other than that, I just need enough space to squeeze in some sort of fridge (cooler/fridge), stove and hopefully a microwave. Portable gear is preferred so I can easily take it out and use it at a picnic table if I want to.
I have to give credit where credit it due - the overall look was inspired by a design that fornesto came up with andposted in the Offroad Contruction tips forum. Thanks, fornesto.
<img src="http://docs.google.com/FilePage?id=dfs967x9_35fh5fhdd7" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_37cprb9khb" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_39ww93mv35" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_42gwnnd3fg" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_44gfc9n7d9" />
Also, how small is too small? (with reguard to TDs)

I have to give credit where credit it due - the overall look was inspired by a design that fornesto came up with andposted in the Offroad Contruction tips forum. Thanks, fornesto.
<img src="http://docs.google.com/FilePage?id=dfs967x9_35fh5fhdd7" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_37cprb9khb" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_39ww93mv35" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_42gwnnd3fg" />
<img src="http://docs.google.com/FilePage?id=dfs967x9_44gfc9n7d9" />