Carb Fuel Line

I've searched every parts store in the area, (you name it, I went there, including a few 'speed' shops), and the only thing I could locate are 2 sections of 3/8 line flared on both ends with the threaded connectors, and two 3/8 brass connectors to connect the lines.
The line is brake/fuel line, from what they told me- is that true?
Can you use brake line for fuel?

I cannot locate the brass Y fitting, the 2 brass Carb Inlet Inverted Flare fittings, or the brass fitting for the fuel pump, (it accepts the flared line fitting)- except for on e-Bay, (from 3 different sellers which adds to the price with shipping).

What a joke.