I am considering the purchase of a JD 550 crawler, not sure of the year but I think its a 1978 model or somewhere close to that year. This would be a machine I would utilize only part time on my property. The machine has very low hours but it has been sitting for several years. The purchase price seems to be good but I am concerned that if it has problems from sitting so long they could be very costly to fix. It does have a winch but I was told that the winch does not operate. I saw another discussion regarding this model -year- crawler and the post advised against these crawlers because of transmission problems and the cost of fixing them. Any advise on this purchase would be greatly appreciated.