Good morning Mossberg Owners.
This thing ended up with 130 welds on it. I ran out of Argon halfway through and I finished it with the acetylene torch. It’s a very crooked affair because it snakes along the crooked exhaust system. Every anchor point is at a different level so it doesn’t really stand up straight on its legs

My practice with the TIG has made me seem like some kind of amazing acetylene welder.
.

I am over three times as fast with a Victor #1 torch.
I was only 60% done (I had reground the tungsten about 10 times already) and thinking “Help me Jesus! I gotta weld all the way around all these tubes.” (I had added two more and a bar!) Then I felt like I was getting tired, there was a buzzing noise in my ears, and I couldn’t make a weld for anything. It turns out that I had run out of argon gas.
That was good luck in the end because I am so much more comfortable with acetylene gas. I was also welding a lot faster just because I didn’t have to reposition the work. Turns out I can gas weld in any position. (Not so with the tungsten.)
I decided to give it all a coat of fluorescent orange paint, but it had dried up in the can, so I grabbed the fluorescent green paint. About halfway through the first coat it blew up on me and shot green paint everywhere from the broken stem.

I brushed the mess all down and gave it a coat of turquoise, which was the only shiny bright paint I had left.

Every bit of this metal was used and has been painted & I ended up inhaling some nasty burnt paint. Unfortunately I don’t have a sandblaster and I had to wire wheel to get it clean.
Of course I only took off enough to clear the heat affected zone for a TIG welder. The heat affected zone for gas Welding is about 3 times as big. Pheeeeew!
Anyhow the paint has dried overnight and after it dries a little more I will crawl under the car and put it up there with rivets. I still have some military spec aircraft pop rivets left over from the Vietnam war.