Try Metalliferous in NYC for sterling patterned wire. They have a
very nice selection. If you can get in to their shop physically,
it’s great! If not, they have a catalog online – the images aren’t
great but their product quality and prices are excellent.
Warning - they can be a bit “abrupt” in manners – just their way of
working. They give good service when it comes down to it.
Hope this helps,