Custom Slant Valve Covers

On my set-up, I formed the tube from flat stock. The welder then TIGed it closed so that it was a functional tube. My welder charged me $80 to TIG the tube, cut the hole in the valve cover, TIG the tube to the valve cover (from the inside) and TIG both sets of baffles I made from the flat stock (which was about $15 at Lowes. Thought the price was very reasonable for the work that was done, especially since I can't do TIG welding (but would like to learn)