I am looking into buying my first zero turn. The owner doesn't have the model # handy but this machine has the older rounded stamped out deck what years were these in production? Were these good decks? I know the newer welded decks are better but this machine fits my budget for right now. I plan on buying a newer machine in a year when I get more into the biz . Also this machine has 1600 hours on it how many hours can you put on this machine before it is time for retirement? It has a 23 HP kohler on it I ahve run kohlers before they seem to be good motors. I will try to attach a pic.