With the mention of death taxes I knew you were talking about a real English Walnut tree, growing in the name sakes country. Still one or two great blanks will be worth more than all the rest of the tree. Use a pro and take the tree out of the estate before they tax it as well. Over here, in the US, we have experts help us avoid the taxes of an estate. Better to save the taxes and enjoy the money yourself. All my family would agree and be much happier to see you get the money rather than the government.