I'm not sure what I could add anything to what he had the ability to do for you. As the victim I would contact the Maricopa County Attorney Rachel Mitchell, she's is the top dog. And if you don't get action then the states AG Chris Mayes. This is interstate fraud.
I live in Glendale AZ and the DA doesn't like to handle cases under $2000. I'd send an email to the Maricopa county DA and
Lodge a complaint about this person, Michael Spector has committed fraud across state lines. You can also contact the State DA Chris Mayes regarding the same concern.
I just shoot Cowboy 45 which are the same length as 45 ACP. I just run them using speed loaders at no real extra cost. Starline sells the brass and Tombstone Metallic Cartridge in southern AZ sells loaded ammo.