To be honest, even though I have one myself so that makes me a bit of a hypocrite to say this, I'd steer away from this species. "If I knew then what I know know" I wouldn't have bought it 5 years ago. It's not really a good candidate for captivity because of the large size for one. If it wanders around the tank it can be a hassle. If stressed it can release "invisible death" (slime or nematocysts) that can wipe out a tank of non-clownfish fish within hours. I've had three tank complete wipeouts and one partial wipeout on top of that anytime I've had to move it. I don't mean to be such a downer, sorry, but it's been my experience so I have to share it. Lots of people have this species and some have reported that phenomenon as well whereas others haven't so it's a bit of luck (or unluck) of the draw.
Last but not least I would be very perssimistic about the outcome of shipping such a large anemone. I guess it can be done, it got to the wholesaler after all, but I wouldn't hold my breath. I would say it would have to be *extremely quick* shipping otherwise I just wouldn't chance it. I'd be worried about overnight, even, possibly being too long. Just me though, I have no experience with shipping them so I could be off base here.
It is a remarkably nice specimen.