i'd also thought of digging up 2 and restoring one for static display for the vineyard in exchange for the other, this would also have the advantage of a spares donor for the one i keep. however i would much rather dig one up and pay for it and be done and dusted but we'll see, i have a feeling they will want paying not only for the vines but for the tank itself which is only fair as it will have a commercial value, what that value is, is anyone's guess as nobody knows the condition of the tank until i dig it up . i'll just have to roll the dice and see what happens