Not sure if I would want to give up the flexibility of the 4120 in tighter places. I had my mind set on a 4720 cab but I think I can get a 5083 cab for about the same $$ or possibly a little under if I can find a 09 on a lot. I have driven a 4720 cab and I am not sure it is quite large enough for me. IE: I am 6'6" 300lbs. I like the feel of a larger cab and I am looking to possibly get into some field work requiring a 5000 series. We have a large selection of JD AG equipment on the farm but the smallest is an old 4520 diesel. I really dont want to drag that around 60 miles one direction for my future business proposition.
So to answer your question, Steve--I really dont know yet.