I got my replacement Razor Crest back and they double boxed it! (The other box inside there is just empty to fill space.) I just opened it up and the engines are fine and the figure cardbacks are pretty good/good, so I'm glad on that end.
Man what a relief, I kept playing scenarios over and over again about how this could be messed up but I have to commend Hasbro's customer service on this one. The only thing I didn't get was an email with the tracking number, I had to use my FedEx account to see that I was getting a shipment (from Milton Bradley haha).