Did you have and luck with YNZ wiring company?
Nope, they just have the asphalt coated loom. The stuff I was looking for is apparently woven on to the harness after it gets put together. See my post 7 above this one.
[on edit] Just today I received some plastic expandable loom (from Amazon) that's pretty close to what was on the harness. Here's a couple of pics. The new stuff is on the right in the first pic if it isn't obvious. It needs a little heat shrink on the ends to secure it in place.
