newbie looking for advice

Hi folks:
I looked at a 2014 rzr 800 today. It was a 2014 model with about 900 kms and 75 hours.
It had a couple of issues that I need some advice on.
1. It was in pretty good shape, a few scratches and was missing the cover for the rad. No big deal but it had about $1300 in work done on it including tie rod ends and brakes. Would the cause of the tie rod damage cause the brakes to need to be replaced? I’m thinking it would have to be a pretty bad hit.
2. There was an odor of burning rubber when we were thru the test drive. We couldn’t track it down but I wonder if this is common.
3. It had lots of jam…but idled very rough. Ran smoothly under acceleration.
Any advice would be greatly appreciated.
Thanks Doug