Oh, I know that feeling! The anticipation can get so thick, you can almost cut it with a knife! DaveO's advice is good. Depending on where you are ordering your tungsten and other supplies from, it might take a few days or more. Call the office to see where things are at. I think you'll want the supplies (except maybe the gas) in before the welder. Cheers and congratulations on your purchase!
Is it OK to want to break something just so that you can weld it back together?
Everlast PowerTIG 185 Micro IGBT AC/DC Welder