UPDATE
I've sourced the parts to build the harnesses. I can begin offering them for $55 + $8 shipping (USPS Priority Mail Flat Rate Padded Envelope + Delivery Confirmation & Insurance anywhere in the lower 48). International, Alaska, and Hawaii shipping will incur whatever the actual cost of shipping is to your location.
This should cut down on the costs associated with purchasing the individual components.
It'll be a PNP harness with a wire lead from the signal wire (pin 1) that you will connect to the fuel wire using the supplied heat solder sleeve and a heat sleeve once you receive it - the only requirement is a lighter.
Given that i'm using high temperature copper wiring with a heat resistance of 200 degrees celsius (392 degrees fahrenheit), I am considering forgoing wire mesh to keep costs low and expedite the time it takes to make each harness.
If there's interest, I can begin shipping as soon as 7/31. I only ordered enough components for 10. If there's additional interest, i'll order additional materials. I just didn't want to be sitting on a bunch of harnesses without confirmed homes.
@Manaz can you do me a favor and confirm that i've not crossed over to "vendor" territory by offering this solution? Kindly PM me if clarification is needed.