I did notice that the MIG conversion kit came with a spool of .023 or .025 wire. I thought it was .025 but I'm not sure now. I'm going to try and get the conversion kit next week. My first project is going to be the passenger door to see if I can do it. Next, I think I'll do a cowl panel or fill in the rust holes that surround the windshield. I will post pics along with wire size as soon as I can. The Army is keeping me busy right now.