I have looked for the same type of neckwire without luck. If you
ever findone, please let me know.
It turns out Allcraft has some, sort of. They are very pretty, very
nice, but they are steel and gold plate, not silver. The strands are
very thin, maybe a half mm, 5-strand or 10-strand for about $36 and
$45. They aren’t exactly what I had envisioned, but they’ll work.