Transport with backbox upright or they will stack heavy crap on top of the glass. Put cardboard over the glass, wrap in moving blanket, shrinkwrap with paper arrows saying fragile glass and this side up all over the things. Make sure they put them in a secure location in the truck and hope they don't unpack the truck and put the stuff in storage while you wait for them to get around to delivering. Because that means two times you will not witness the unpacking, repacking.