kitchen work surface (Gunby NG33)

Is anyone out there renewing their kitchen worktops and need to get rid of them please? Or do you have any stacked away in a shed somewhere please? I am after 2x6ft, or 2x8ft, lengths to make a long, sturdy work bench for my shed. I will consider anything in these sizes, or different longish sizes, as long as they are useable and sturdy. I can collect within a 25 mile radius of Gunby, North Witham.