less than 40 hours on it, has a 32" inch bar and a 24" with chain that was on the saw new and never used .What should i look for on this saw . I will be able to cut with it prior to purchase as he owns a stove shop and has some wood outside .He also said he had the original sprocket that was on the saw had a bad connection , I gathered he put a an aftermarket on for more performance? Price is 600$ firm. Is it a fair price I know they are around 1200 new