Good morning, I am not familiar with JD numbers in this arena. I have a F911, which is a great machine for what I use it for. My goal is to at some point replace it with something Diesel, so I don't have to keep carrying gas cans. (I have several other pieces of yellow equipment with a bulk fuel tank) What would be something comparable to the F911, but in a diesel version. Possibly even something with the "batwing" mowers?? Something around that vintage would be what I would want from a cost standpoint. I am OK with doing maintenance to bring it up to working condition.