If there is a shipper who specializes in huge, heavy, yet lovely and delicate furniture-grade loudspeakers, I don't know about it. To those responsible for hands-on physical movement, cargo is cargo. "A mind that's weak and a back that's strong," to quote Merle Travis with a nod to Mark Knopfler.
$800 and it's not "white glove?" That's why, if ever again I buy giant loudspeakers, I will drive directly to the US manufacturer or in-stock dealer and collect them in person. Any fault will be my own or that of the insured bozo who rear-ends me. Like Miller (albeit with far less technical knowledge), something learned from experience.