Respectfully request what to look for when shopping for a used carb

After reading the post about the car with unexpected rust on the front end I would be more concerned about finding an absolute stand up guy to buy a carb from instead of just finding a carb. That way you dont spend good money on a bad used carb that you could have spent on a new carb. See if one of the well known guys on here has a woking carb they would be willing to ship you for a reasonable price.