Got me an old 28' Haulmark. Just get as big as you can afford. You can always add things as you go. That is what I have been doing. Mine was too good of a deal to pass up. I have repainted the entire inside white, added overhead aluminum cabinets, battery box & winch, electric tongue jack and being that i am in the hood I added latches that i lock from the inside so even if someone snips the padlocks off of the big rear door they still cannot open it from the outside.

I also use the electric tongue jack as a anti-theft device in addition to the tongue lock. Jack it up as high as it will go & pull the fuse which is hidden in the harness. Then no one else can lower it onto their truck to be able to drive away. I also wrap chains thru the wheels & lock them together.