I divided my Pink Pretty Princess Peyton lotus and have a few extra tubers. If anyone wants one, you can have it for free. Just pay for postage: $12.35 Priority Mail Medium Flat Rate Box. I haven't measured them but I think they are probably 8 - 10 inches long. They all have at least 2 growing tips on them.
I've never shipped lotus before, but I remember how mine came to me: wrapped in a wet paper towel, tied in a plastic bag, taped down in a priority mail box. I'll send it that way unless you have a better idea.
Phil