Deciding on these 2 models. Found a used well maintained 1 owner 475 with 700 hrs. bar tires with fliud in rears with MC19 cart. Is it considered heavier duty than the X540? Are drivetrains and motors better in 1 than the other? How much life (engine, trans) could I expect from the 2. I have a L130 now with 780 hrs. on it still going good. Need some advice please.