cpu123

I want to build this power supply. However, I am very confused about and how to start. There are several versions and proposed upgrades that I did not know what to do. I need the schematics and drawings of printed circuit board. The user "red baron" published schematics and pcb's desings, someone could confirm me if this is reliable? Apologies for repeating questions, I read a lot of stuff before, but I did not have my doubts resolved. Thank you.