The only stumbling block concerns the seller, he has been shown impressively how not to do it:
I thought, struck by lightning, as the postman was with the package in the door. I had just ordered a diffuser - is not it?
The packaging for the product has failed so so great that there quite a camera incl. Flash and an interchangeable lens would have found a place.
A padded envelope would have done it and would even be a saving for the seller - of the material waste to mention.