I have a 4100 tractor and have been looking for a 60 inch mid mount deck for it. I have occasionally seen them on ebay but have been outbid. What is the difference between the green and yellow decks? Is one more of a commercial application? I have been told that they no longer produce these decks though some dealers have them sitting in their inventory. Anyone know what I should pay for one of these or where I can get one? My local dealer in Massachusetts said they are no longer available. The last one I saw on ebay was a yellow one, advertised as "new old stock" and sold for just under $1000, I was outbid in the last seconds of the auction. Thank you!