I thought about doing this several times. As has my daughter - she loves looking at all the “vintage trailer makeovers” and thinking she has the skills to pull it off. She does not lol.
However I’ve seen the results of some of the attempts and they’re often not pretty lol. Often people just give up, paint everything or put a bunch of trim over things to hide the mess, and try to unload it.
I’m fairly confident I may end up in that category lol.
There really is an art to working in small spaces with lots of angles, curves, and obstructions. And then making it all sturdy enough to survive the rigours of going down the road.