If I remember correctly there are two companies that make wire (told to me by the person who owns Genesis, Gary Koh). You can use the dueland wire designed after the old Western Electric wire - look it up on Parts Connexion as an option.
The wire companies he told me about were:
Weico Wire (https://www.weicowire.com.
And
Magic Metals (https://www.magicmetals.com
Good Luck
The wire companies he told me about were:
Weico Wire (https://www.weicowire.com.
And
Magic Metals (https://www.magicmetals.com
Good Luck