One thing that I have noticed over the years is nothing stays the same.
Will peanut always be there? They have all ready changed in shape and colors from the original ones used by Harbour Lights? Does anyone ever turn down a lighthouse because they didn’t have the original peanuts? Not that I know of. But With the price of oil climbing and Styrofoam being made from oil, I bet in the future the Styrofoam peanuts will give way to a cheaper recycled material. Will collectors still not care that they are not the origianl peanuts if the materal is not the same?

But as I have said before. The closer the collectable is original the better its worth.
When ever a seller can convince the buyers that he is selling a complete original packaged Harbour Light that was never displayed except for inspection the seller will definitely receive a better return for it.

My advice if all possible keep it all original.