Great Choice. My Lincoln SP175+ (older version) has been giving me reliable service for years. I would just get a small bottle of Argon/CO2 mix gas. Most welding supply places even some auto parts stores set you up with a bottle that you take in and they swap out when empty. Something in the neighborhood of $35 a bottle will last pretty long. Nowadays I have the large bottle chained to the wall. Lasts for months depending on how often you use it.
