Hi, I've got an old millermatic 35 mig welder and would like to adapt it to use a newer spool gun for aluminum welding. The machine was wired for one years ago with a round plug that is threaded on the outside with 6 pins inside. My serial# is HG084234. On the speed control panel it says style HH-6. Please inform me of any way to make this work. I'm looking at a spoolmate 100. Also this is just for recreational use, not production. Thanks, Mike