Pull Rite makes a "no drill" installation for our trucks. This is what I have and I did it myself. I would not trust anyone to weld onto my frame. Also, if you go a campground or a parking lot and look at the hitches that are welded, you will see a pattern of simple "home made" flat brackets welded to the frame. Not very robust in my opinion.
Google "no drill" 5er hitches and you will get alot of options and info.
Google "no drill" 5er hitches and you will get alot of options and info.