Just a trace of blue

Original fuel line on T-6 Porsches had a blue plastic tracer in the braided cloth.  Many of us have found samples of this that remained unchanged for decades under the floor mat at the front of the tunnel.  It was used in that location, but also on the engine, the gas tank overfill line (T-6) and connecting the brake fluid reservoir to the line feeding the master cylinder.  
Some attempts have been made to replicate this plastic lacing, but none were made with the same materials as original.  Today you could buy fuel line that is woven nylon over the rubber fuel hose, and the blue tracer line is made up of several thin strands of nylon threads (not a solid lace).  The fuel line is shinny black, the color of the tracer is the wrong color, and it is obviously not a solid plastic lacing, but threads.​
So the problem is that the original lines are old and unsafe, not fit for modern fuels, and a replacement fuel line can be had in braided cloth, but without the blue tracer.  This is what a large percentage of 356 owners are installing today.
So, what is an originality freak to do????
I had my own line made up with the proper materials of course!!!!!!!
I pulled the blue plastic lacing from an original fuel line and examined the back side to get a good color match.  Originally the blue was lighter than the dirty appearance the 50+ year old stuff looks now.  Very happy I found a good match.

Results are below.  
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This first photo is the original fuel line that was used on the gas tank vent line.  I decided to reuse this piece since it is in nice shape and normally not a "wetted" part.

Here it is installed.  

Another shot of used/original line.  This one is so dirty is still has spider webs on it.  That makes the blue plastic tracer line look darker than it did originally.

Here is a somewhat blurry photo of the nylon version of replacement lines.  Again, the material is nylon instead of cloth, and nylon threads instead of solid blue plastic lace.  In the photo below, it doesn't look to bad, but in person, it is very obvious that the braiding is done with groups of nylon threads, not cloth.  A few years ago I bought some not knowing it was made this way.  I tossed it out when it arrived.

And now,,,, here is the line I made up!  Cloth wrapped with a solid blue plastic tracer as original!