Chevrolet CMP FAT

[67burwood]

Some help needed please in locating a steering wheel nut for my Chevrolet CMP ,   mine is missing and I can’t find a replacement, I’ve contacted LWD but they don’t have any, I’m hoping someone might have an old one going spare, I’ve goggled Chevy truck parts but the sites I’ve contacted have told me that the classic US Chevy truck nut will not fit… 

any help will be appreciated. 
 

Thanks Seamus

Edited June 28 by 67burwood