What welder to buy

Look at a 125 amp + model. get a mig bottle so your welds are cleaner (the flux core wire sucks, so does grinding). And use the thinnest wire you can like 020. don't buy a used one. I got a hobart 125 amp job at Tractor Supply for ~$225, their house brand which is a campbell housefeild is $85 less and they do the job good too.