My wife tells me that I need to get (I know, can you believe it) a sickle bar mower for my Cub Cadet 73. Were these style mowers available for a 73? If so, are they readlily available and what would I expect to pay for one? Are any other options necessary to run this mower? I just have the bare bones tractor and a 38-1 belly mower. Thanks for the help