1968 D100 Step Side /6, Auto on the Dash, NEED a 1BBL Carburetor, HELP

I have a Carter BBS on a 64 /6 that ran as recently as a couple of months ago. (Right around Xmas) I have the motor promised, but maybe if the guy who wants the motor doesn't want the carb? I'll find out sometime this weekend when I drop off the motor to him.