I don't have alot of resources to use, and as I'm sure that I'm not the only one here.....I don't have alot of money. So the stud gun is out of the question.
you could just use a dent puller to pull the corners out. personally i would weld over the old roll pan. i did it for strength. the bottom of the roll pan can be welded to the bottom of the original pan and it helps when you drag it.
Ok, thanks alot guys for the help! Like I said this is actually my first mini truck build, even though someone else started the project, I hope that I can finish it right!
Did those directions help at all? It was my first time trying to explain how do somthing or that sort. Next time I do somthing like that I will take pictures along the way, so I can write a better tech.