Nor sure if you have found the tailgate skin. I have used Ray Taylors pieces and they are good as has been said.
But Craig Venn at Rust a Problem makes good ones too.
He is up near Maryborough in Qld and easy to deal with as well.
I do not know the prices quoted but I believe that Rare Spares have theirs made by "others" anyway.
Let us know how you get on it helps to know the current status of parts suppliers.
Brian