Can you get a dual power option with this unit? We love the one on our pipe pro 304. Miller used to say the ac tig side of the Trailblazer was syncrowave like welding, is that still the case, or is it like 330 abp welding on the 80's Trailblazers? (along with a HF unit). What is the hour expectancy of that kohler gas engine, I do believe the compressor will out live the engine.