I think it's worth $50. Even if it's beyond help and it came to parting it out, you'd still get your money back. If you have the space and the time, go for it! In running/driveable condition, it's worth $200-400, in restored condition, it'd be worth more like $500-1000. It would take a lot of work to find enough parts to restore a Chaparrel though, and you wouldn't get much return on it, so unless you are willing to put a lot of money into it, I wouldn't recommend restoring it. It could be easy to get running, but I wouldn't count on it. I would still say get it!
2012 Arctic Cat XF 800 Sno Pro
2011 Polaris Rush 800 Pro-R