Don't buy an "off brand", no matter how many amps or features it offers. You will want parts down the road, and name brand co.s will be there when you need them. JMHO
Corley
Like these guys said. The best you can afford. If you have no experience with a welder, enroll for a course. Theres a big difference between throwing some metal on a couple of parts and WELDING them. JMHO
Gerry