[mothered]

With  an EB of such a high value a PR would most likely be required wouldn’t it?

Given It's Amazon as well, I would say It's almost a certainty.

I think boxing seems like my best option, when you say extra packaging will be needed, do you mean just put some cardboard inside the package or what?

Yes, pack extra cardboard.

Even a box In a box will suffice. Whatever you can think of that adds the required weight. Of course, all within reason.