Here in VA walnut logs bring primo price.
We cut some timber 2 years ago and had one exceptional walnut log that brought $600. My suggestion is to check with local sawmills or lumber yards to see if they buy walnut logs. They shouldalso havea timber cruiserthat could come out and estimate the value of each tree.
If so have a tree trimmer top it and limb it up then just drop the log on the ground and you arrange for hauling to mill. Logs should pay for trimming costs plus leave you with a nice little bonus. Stumps are sometimes usedfor stocks and pistol grips.

xbowbarry