Would be almost impossible to build an RV port where I park my RV on the property... have to come out of the space at an angle and turn up a hill pretty sharply. I have been thinking about solutions to keeping direct sun off the top of my RV and a guy camping next to us in Camp Wood this weekend (at the Big Oak River Camp) mentioned this business in San Antonio:
https://www.shaderv.com/
Not sure how easy it is to put this gizmo on a trailer such as when weekend camping (or to haul it) but it might work for the other days during the month when the 5ver is parked in its home slot.