For sale is a Hobart Hefty CC/CV suitcase wire feed welder. It is an across the arc powered welder, so you can use it with any DC power source. I believe that it has an internal contactor also. Also includes a big length of 3/0 welding cable (pictured). This cable is very valuable.
Testing: I powered this wirefeed with DC voltage and closing the gun contacts made the contactor click and the wirefeed's wheels turned as they should.
What you see is exactly what you get.