Replacing Rocker panels.

[custom10nut]

On a scale of 1 to 10, how difficult is it to remove the old and install new Rocker panels?
My cab corners are solid as is the floor, so the rockers are the only piece that need replaced.
I’ve read before, that drilling out the spot welds, and the old should pop out.
Then the new is welded back in place. Is there body seam sealer where the panels meet?
Sounds easy but I’ve also seen and read about the misalignment horror stories.
That’s my fear
It’s been a while, but I’ve done body work, and can weld.
I just don’t want to create a mess by attempting something beyond my abilities.
Any tips/pointers/advice anyone can give me?