For sale is a Thermal Arc 400 GMS welder. It was made in Japan (no China junk!) and can do stick, MIG, and TIG, with proper attachments of course. It goes up to 400 amps, and can work from single phase and three phase with different duty cycles. Included are a stinger and ground clamp for stick welding. It also has a 14 and 17 pin control connectors on the bottom. This is truly a Mercedes benz of inverter welders. Easy to carry around.
I tried stick welding with it and it works great. Since I do not have TIG or MIG attachments for it, I did not test that functionality.