@DJScope
@Kamakahah
Thanks both of you for the advice. I need to check my supplies (meant to last night but got busy) and see what all I purchased. I know I have a roll of nice solder. Not sure about solder wick (to remove excess solder), but I will pick some up. I guess a lot of solder seems to have flux in it, so I will check on this tonight.
Great to hear, I think I will use the 24AWG for now and see how it comes out, just mock braid it and see if I like the thickness, size, weight, etc...before buying more wire.
For Neutrik, Oyaide, Canare, Double Helix, etc...I would be curious to find (just tried researching for a few minutes) the various common options people are using. Yes there are probably 30 different brands, but other than Neutrik what are some go to options? It does seem the Neutrik is well regarded.
What do I do for the split in the cable? Where the 4 wires get split to two for each headphone. Heat shrink is used here?
I will check out the paracord and nylon multifilament. I remember searching for cotton sleeving and trying to find something similar to unbleached cotton but had a pattern. Sort of high end stuff, but I was going to have to order a massive amount. Some guy had a connection through a factory or something, haha. I don't even recall. Might be simpler to stick with something common.
Thanks again for all the help. Only seems like I need a few things and some time to work on this.