I think I now have all the assorted fittings purchased to complete the fuel system.
One fitting I had to order was the AN6 to 3/8" hose barb seen below that attaches the fuel line to the engine fuel pump. Used the safety wire clamp method to secure the hose rather than a bulky screw clamp. This fitting takes the place of the curved piece of tubing seen in the second picture that would require sliding the fuel hose on and trying to secure it to the smooth tubing.
