Is there a quick and easy conversion kit for the 48" deck on my X380? I recently borrowed my neighbors X350-42" which was in mulching mode, and I believe that is the way to go. I am not interested in spending the money on the automated/electric control version shown on the JD site with an X380, but I did not see a simple bolt -on, leave-it-on option. Is this do-able without buying a new deck? I would be willing to leave it in mulching mode full time.