Glad to hear your optimism....I get so frustrated how people always assume the worst and start crucifying someone. Your post did not imply and wrong doing by the seller. The condition of a $1200 album is going to be heavily scrutinized by any buyer so any inconsistency from the ad is valid and sounds like your seller is acknowledging that. I would not worry about something being snapped in half. Take some extra precautions on a sturdier support inside the box or put into another box. FedEx International is surprisingly efficient. I just bought a power supply upgrade for my streamer from Poland and standard FedEx International shipping for about $35 took one week and the box was in perfect shape.
I recently started selling vinyl on Discogs to start thinning my collection. I have bought a lot there over the years but am new as a seller. I usually only buy NM and have been fine with small marks and imperfections....to me that is 'Near', but this does open up a door of subjectivity that is perceived much differently by people....especially on a highly valuable record.
I guess you don't want to share what album, but I am curious : )