Yes. the picture is correct. If you are doing a 4 to 2 cut down. I had Line-X shoot them on all the surfaces even the plastic ends. They look great. I hope you got the support brackets that go from the pinch weld to the body that the rails attach to..
Just did this project, cut down 4dr to two door rock rails. Bolts into body from bracket and frt. mount. Dorman #980-530D pkg. of 4.. $4.49. Metric. 10mmx1.50x30.
Yesterday a guy sold his Bronco on Bring a Trailer that was completely done in a Line-X type of material. The comments were very interesting. Lots of pictures too.
https://bringatrailer.com/listing/1978-ford-bronco-12/
What a great idea this is. It certainly adds personality to the bold design of the Bronco. I'm thinking LineX ultra to do the top. They have the ability to match any color.