The root balls were removed when the place was dozed, but there are still strands of roots sticking out all over.
My soil is sandy loam in some areas but tough clay in others. In other words, the soil isn't loose and doesn't smooth easily with the loader when I tried.
The "red" Countyline implements are for sub-compact tractors with a Category '0' Three Point Hitch. You need to choose from "yellow" Countyline implements which are set up for the Category '1' Three Point Hitch on your compact (not sub-compact) tractor.
I have no experience with Cedar roots. Will Cedar roots sprout into new trees? What about applying Roundup?
If you plow the land first, a Disc Harrow with 18" diameter notched pans may smooth it for you if the soil is moist. If you do not plow the land first, a Disc Harrow with 20" diameter notched pans may work if the soil is moist; nothing lighter. Your NH1920 should be able to pull a 20" Disc if it has 4-WD. It should not be too difficult to rent or borrow a 20" Disc Harrow, which is a common size.
You cannot satisfactorily disc dry land; nor can you plow dry land. Moist soil is crucial.
A PTO powered Harley Rake may be the "sure thing" but I do not know how easy they are to rent.
A Hay King 2-shank or 3-shank Pasture Renovator is also a possibility, but pretty narrowly specialized implement. I have considered this implement for removing wild grape vine roots but have never been able to bring myself to spend the money for a new one. Have looked, but never found a used one in Florida.
HOW MUCH LAND DO YOU NEED TO LEVEL? We keep spending your money without knowing the job size.
When the land is level, what will you use it for?
Here is a LINK on selecting Disc Harrows:
http://www.tractorbynet.com/forums/attachments/308251-disc-harrow-selection-18-45-a.html?highlight=