Bed assembly/tailgate help needed

[RyanBoz46]

Hi all, I have a 68 that I am building. Took over where the previous owner left off. It has a repop bed and tailgate (I believe MAR-K), and the prevous owner welded it all together rather than bolting it.

I have a couple of questions/concerns:

- The tops of the bed sides.. mine are arced (high in the center and arced downward at the front and rear) is that normal, or are they supposed to be flat? I'll add a picture.

- The tailgate fitment. The body line on the tailgate is about 1/4 too high where it meets with the body line above the tail lamps, yet, the top of the tailgate sits about 1/8" - 1/4" lower than the top of the bed side. I thought the tailgate might just be defective, but I measured the distance from the top of the tailgate down to that body line and it matches up with an original tail gate that I have. I'll add pictures.

I would appreciate any insight on these issues, thanks,
Ryan