Hi,
While checking out shopgoodwill.com, thanks I believe to Uncle Jesse for mentioning this site, I saw this Norvise conversion set. I don’t have a Norvise, so those who do, happy bidding as they say. Link to item below.
Mike
https://www.shopgoodwill.com/auctions/The-Nor-Vise-Fly-Tying-System-Conversion-Kit-42893750.html