As someone who has terminated hundreds of Kapton wires, I will also point out that Kapton wire is a major pain in the ass to work with, because it’s quite difficult to strip. Kapton insulation is not extruded onto the wire like PVC, etc, but rather is thin Kapton tape that is wrapped over the wire. So when you strip it, you need to accurately cut practically every layer of Kapton, but without nicking the strands. If you don’t cut nearly every layer, then when you pull off the insulation, you leave the wire covered in a few layers of Kapton.
I stripped it on a $$$$ micro-coax stripping machine. The $$$ wire stripper machine and every manually-operated stripper (every type imaginable) did not strip it reliably without risking conductor damage. (What I did not have available was a thermal wire stripper, which is likely the best option.)
How about using a flat flex cable?