That's a beautiful machine. Too bad about the damage. I would be about half sick if I opened a package and saw that. Your best bet would be arbitration thru Ebay. It doesn't look like the packaging was even close to being good enough for something heavy like a sewing machine so the shipping company probably won't be helpful. The only other problem is the repair is likely to cost more than you paid for the machine. That makes it difficult to negotiate a partial settlement where you can keep the machine.
I'm sorry to see that happened,
Rodney