You need to read the post more carefully,
"Create a sheet press mold, machine a chamber block, yes"
I fail to see how you are going to stamp anything by hand there, let alone stamp 26ga shit. You need to research your materials a bit better...
Go
HERE, http://gunsgutsandgod.com/Section%20one.htm, it is an excellent tutorial on how to make an AK reciever from scratch.
So please, post more pictures, and less BS. Please STFU and think before you open your mouth next time.
-Daes