Mechanic

80 hours a week and CFA is probably a bit much. I'm not you, but if I were it would all depend on much you would like your job. Just give it a go and take the first job; and see what happens. The worst is it is to much for you and you fail or know your going to fail. Then just take the CFA when you have time. But besides that you seem like you are getting short changed with the pay in the first job like EMHdenied says.