Nice work!
RE Wire nuts: I've found a few when working on old bikes. In most cases I suspect it was exigent circumstances - gotta splice it and this is all I have. Then it becomes "If it works, it ain't stoopid." In other cases the culprit just didn't know any better and/or thought "It's better than twist and tape." On that Suzuki GT550 I rescued, there was actually a couple of feet of orange extension cord spliced in with wire nuts!
I'm one of those sick fucks that actually enjoys wiring and I have a drawer full of Vintage Connections connectors in various styles and sizes and the associated crimpers.
I haven't looked at VC, but where did you get the mesh split loom? That's some nice looking stuff!