I found two JD lawn and garden dealers within 25 miles that can sell the 4000 line. I've spoken to both and one has a 4720 open station in stock. He is sending me a brochure (eyes are no longer good enough to read the specs on the website) and I plan to stop in for a look next week. It's a pricy bugger but has more HP at lower RPM than does the Kubota
L6060 and does not have particulate filters (How does JD get away with that?). I will certainly pay more to avoid particulate filters and/or DEF.
It also has the economy PTO feature, which is very desireable for my purposes as most of the time, I do not need 50+ HP for what I plan to use it for. The economy PTO feature allows one to cruise along in the light stuff at lower RPM saving fuel and keeping the hours down while maintaining blade tip speed. More and more manufacturers are offering this and it is a great feature. The Kubota does not have this feature.
SDT