Randall made about 500 Southpaw 1911s. After Randall closed, its tooling was purchased by MS Safarii Arms (Olympic Arms in Washington) which made less than fifty Renegades before lackluster sales shut down that line. Rocky Mountain Arms in Colorado also churned out a handful, but they were $1,500 each and that was too steep for this po' boy.
Quite frankly, I don't think you really get more ambidextrous than a black powder revolver. Cocks with either thumb, only one trigger and the loading lever really doesn't care which hand is your dominant hand.