1st snowmobile- recs on older model??

Moved to a new place with a couple acres and have been looking at different snowmobiles on craigslist and trying to learn about them. Any recaps on solid older models to look for? Looking to spend 1000-1500 and realize I will be messing with it and fixing things. I am Indiana and we don't get a ton of snow so this would just a fun thing for the kids and I to mess around with a couple times a year. Just to give an example of what I am finding. Also, when looking At these, besides starting it, what to test/look at mechanically??

Artic Cat Panther 440 -$975
http://ift.tt/2gSZq9V

Polaris Indy 340
http://ift.tt/2gSrEBq

Skidoo 540
http://ift.tt/2gSZqGX

Any thing to look out for?? Thanks all!!

1st snowmobile- recs on older model??