sold before on US e-bay I will bet that this is an e-book or video on "how to" ,once you read it it will be simple to do your doors, all you will need to be able to do is machine up some hinges from aircraft grade billet aluminium or from high-grade steel billet, do some simple TIG welding , do some other simple engineering tasks and you will be set !!!!!!! My Gran used do do it by knitting in steel wool.
