Background info...I currently have a kuhn discbine with 8ft cut that requires 60hp minimum, but if this one ever gives up I would have to replace it with a slight bigger one, 9ft that requires 70hp minimum as my model isn't made anymore.  Currently I use a 6080 2wd on the discbine and in real heavy grass it knows it's back there.  I also have a newer 70 hp 4wd of another color(not green) I could run on the discbine as well and think it could probably handle the 9ft. maybe?  It doesn't have any issues with the 10ft brush hog in heavy grass/weeds.  I cut around 85-100 acres of hay each year depending on the number of cuttings.

If I went with a 6080 4wd I would put a loader on it for hauling bales and it would give me a second/backup 4wd tractor. Trying to find one in real good condition and lower hours will be hard and probably pricy.  They are easy on fuel.

The 7000 series would be cutting hay and brush hogging only.  The cheaper option to buy at least, but not sure on the maintenance cost and fuel usage. A cab is neither here nor there for me so open station or turning the cab into a canopy is an option.  How loud are they w/o a cab?

What do you all think, should I be looking at another 6080 or a 7000 series?  I don't have the shed space for both sadly.