Any replacement will be limited to sub 14ft and 2000kg.
Wife, or caravan?
We started with a cheapo soft floor, in less than 2 years upgraded to swan for far better setup/prep times, as most things are permanently kept in the trailer rather than in plastic tubs that we haul in and out of the trailer. It's also nice to have a clean, dry place to sleep in any weather. In our soft floor when it rained everything got damp and there was no escaping it.
One thing we weren't prepared for is how much extra campfire cooking gear we've had to buy now, as we no longer have an outdoor kitchen, and nobody wants to go inside to cook!
Our dream is the smallest offroad van or poptop we can comfortably live in. Outside kitchen, indoor bathroom not necessary if it has an outside shower, just a clean, dry bed, and maybe a small place to sit on cold rainy days, and we're good. Just gotta get rid of the kids first.