If the end links are broken, it's not a big deal...I would still fix it as soon as you have time, but that trip shouldn't be a problem.
I'm a little confused by your comment that "the hood is bent on the sway bar link"...I don't understand what that means.
It's obvious in the first and second pic that the sway bar had slid to the side by the shiny bit on the bar, and after he banged it in, it's pretty much centered. The stablilizer link probably did break because of age, but that doesn't mean it's not his fault...not sure you'll get much out of him, but he did take $100 off you, so give it a shot.
I'm a little confused by your comment that "the hood is bent on the sway bar link"...I don't understand what that means.
It's obvious in the first and second pic that the sway bar had slid to the side by the shiny bit on the bar, and after he banged it in, it's pretty much centered. The stablilizer link probably did break because of age, but that doesn't mean it's not his fault...not sure you'll get much out of him, but he did take $100 off you, so give it a shot.