An update to my internet searching. Haven't used it yet but acquired 5 pcs 2ft .012 NITRIL WIRE and there are more THINNER & THICKER possibilities from:

McMASTER-CARR company

https://www.mcmaster.com/products/wire/material~nitinol-nickel/?s=nitinol+wire+black

Scroll down to see the 2ft pricing. Coils=oh-my.

abit pricey....but my go-to at the moment. Haven't tried to cut it yet either - could be an issue.