Quality small 5th wheel for disaster assistance

I would look more into the cargo style with living quarters as you can customize the trailer to fit your needs. I went this route with my business trailer. I could boondock for a long time in that and it had a 21k GVWR with triple 7k axles.
Plus these trailers hold their value better than an RV. I had mine two years and sold it for what I paid new.