My dad had mentioned that he can't get a good view on the sides of his 5th wheel with the default angle the side mount cameras have. Created a 4.5 degree wedge to angle the cameras in a bit more for a better shot.
If you print these it should probably be in PETG as most RVs are in the sun and heat quite often.
Also you might try printing it on it's side since laying it flat, while adhesion is better, it causes the wedge to have "steps" as the layer height increases.
The author hasn't provided the model origin yet.