I don't think would be worth more than a dragon or platinum equivalent. But I think it would all depend on interest - and more importantly if a certain collector already has this. I don't know if he does, doesn't, or is even after the skin.
I think 1000e is a little generous on this still.
But I seem to be stuck in a year ago gw and I have noticed things are worth more than they used to be because ecto are worth less. So maybe 1000 is possible. Maybe not. Would really depend on who needs it.