I am new to Kubota but not new to tractors. I've always had much older tractors such as Case SC and DC and also a whole lot of Allis Chalmers D series stuff. I'm really looking hard at getting something a little newer than my newest 1963 Allis. For what I do I'm feeling pretty confident through research that I want to be in the neighborhood of a 50hp 4wd M series Kubota with loader. As I've been searching over the past weeks I have noticed that it seems like the M series tractors of the 1990's had more gearing options than the ones made from 2000-2010. I have been eyeing a M5030SU and when I look up the spec sheet it seems to have very impressive creeper gearing when compare to something like an M4800. My question is if there is anything to gain from getting a 2000-2010 M series over something from the 1990's. I don't want to buy something that I can't get parts for. I really want a gear driven trans, not a hydrostat. Thank you for any insight.