tecumseh walbro wta-4b carburetor ice auger tc200 tc300

I am looking for a walbro carburetor that fits the tecumseh tc200 or tc300 engines that were on ice augers. They put these carbs on some of the older jiffy, strikemaster, ope and eskimo augers. I would like a used one as the auger I am fixin is not worth much. I don't mind rebuilding. New would be fine if the price is right. The tecumseh pn is 632321B. Any help would be appreciated. I would also buy the air cleaner assembly.