I've read that the Harbor Freight stud gun was ok but no personal experience with it. The Magna Spot is outstanding. Studs will only do so much though. I've gotten too rough and actually pulled them off, creating a small hole. I'm no expert. On the Mig skills, just get out there and practice David. That's what it takes. I welded on two quarters, two rockers, a trunk dropoff, a wheelhouse patch, a tail panel and a door skin on my brother's car. Now I've done two rockers and five quarter panel patches on my Dad's car. I just now feel like I'm getting to where I know what I'm doing.