You did well to get one. I don't how many were cast but I suspect less than a dozen.
I never got the other ones that were part of the deal.( three more so I could have had all the variants planned.2 British,and 3 German) so I never made the others.
I've toyed with the idea of re sculpting them.So many walkers have been released in the last ten years ,It alway felt that revising them, was a waste of time . I had the drop on theses company's by nearly five years and the whole thing got shelved. Now it'd look like I'm hanging on their coattails
But I've also made this one for Dragon bait.(sort of a sculpting great grandson of the British walker.)