Datsun29

Trying to convert my n/a l28 to a custom turbo set up and hit a snag so early it’s almost killed the project, I can’t seem to find a turbo manifold stock or aftermarket, other then cxracing but that’s a pricey piece of metal lol. If it comes to it I’ll bite the bullet but does anyone know of some who has one for sale or where I might find one othe then eBay? Even a junk yard would be fine I’ll just get it shipped I don’t care