You're always gonna need to be ready or at least able to stop and ask yourself, were the favors that big, or did they just tell you they were? It's the middle of the weekend and you're fretting over this instead of spending your own time how you see fit or coding for profit.
A company that's asking you to figure this stuff out for them isn't necessarilly going to sign-off on anything too reasonable, but I'll agree my advice was more suited for after that happens.