holes in stepside bed sides

[FL71C10]

I am working on getting my stepside bed ready for paint and I am trying to figure out if some of the holes in the bedside should be filled in. There are two near the front of the bed and two near the back of the bed near the tailgate. Could some of you who have stepsides look at these pictures and tell me if you think these holes are non-stock and should be filled in?


Thanks! Here are the two at the front of the bed.