I figure that nomatter how we organise it, if buyers want signed decks, I've got to take off the shrinkwrap to sign them
As long as they also have the option of buying unsigned/still shrinkwrapped ones as an alternative, it's up to the buyer then
I doubt I'll be able to get hold of empty boxes from USGS, so I was thinking along the same lines - you can send me batches of boxes for signing, shouldn't be too expensive as they're probably pretty light...