I have yet to do anything to make it better for off road travel (shocks/larger tires). But these are the few things that I have done so far.

Added an outside light
Attachment 8745

Added a fold down countertop with sink
Attachment 8747

Hi tech plumbing
Attachment 8748

Attachment 8749

Folded down makes an ok table
Attachment 8746

I will paint it when I have time.