If you order a flex torch from Everlast, it will be a plug and play package. They have both their own brand, and CK Worldwide. However, I don't believe the CK one will come with a torch switch. Give them a call and they can confirm all the details and give you the various options. Your typical application will dictate what will be the best torch for you. Also look into the stubby kits for the larger torches, to make them a lot smaller, while still handling more amps than the smaller torches.
Long arc, short arc, heliarc and in-the-dark!