I've been looking up images from Dara Pakistan. While I cannot find the Set of Images of the Gunsmiths their copying an Armsel Protects I have fount some Saiga-12 knockoffs and Aks in 7.92X57mm.
http://www.sadefensejournal.com/wp/?p=1989
and then there is Improguns.
http://homemadeguns.wordpress.com/
It gives one Ideas.