id just cut the logs out of it, call your local log buyer first and see what length and how they like them cut.then haul them into the buyer. you will get whatever market price is for your grade log. there are a lot of things that determine the price on a walnut log.if you only have 6 or 7ft of straight log and some big limbs that can be cut for logs also, it may not be worth that much.a very uniform straight log of longer lengths can be very valuable. a lot of people have a greatly inflated veiw of what their log is worth and are often dissapointed. for best price take it straight to the mill, avoid middlemen who want to buy it and just take it to the same place that you could take it to yourself. however if you have no way to cut or load and haul it then yu are not going to get the best price.