You're comparing a 240 to a 280 which has bigger rails. I'd need a better photo to say for sure, since there does look to be weld toward the front of the 280, but forward of that part, the rails are clearly stock, you can see the flange of the factory rail and it looks to be untouched. Unless there is a seam where the light is hitting the rail, then I'm left to conclude the rails are stock. Again, better photos are needed.
As for the paint, I think it's just how the sun is hitting it. it matches above the pinstriping, and if you look down at the bottom of the dogleg, just above the body line, again, the colors on the quarter and the door are matching.
Nico needs to go see it in person with his own eyes, and ideally, with an experienced friend, and see what is actually there or not.