That's unfortunate. Shipping CRTs is always a big gamble.
It is technically repairable though, including restoration of the broken plastic. The missing plastic can be recreated by creating a silicone mold based on an undamaged case and then filled using resin. This would even preserve the plastic texturing, and the resin could be dyed to match the original case color or airbrushed after the fact.
Alternatively since the broken areas aren't huge, it might be also possible to re-sculpt the missing plastic with an epoxy putty.
I recently posted about an Atari computer restored using these techniques: Most insane computer restoration I've come across