I need to buy a welder to do some patch work on my car. I found one from Harbor Freight that I was thinking about getting. It is a 170 amp-dc, 240 volt, mig/flux cored welder. I won't be using it a lot, just to do some patch work. I'm a beginner with this stuff so I am wondering if this will be suitable for me? If not, what should I buy? I don't want to spend an arm and a leg for something that won't be used all the time. Thanks!