No need man, just remove part of the shell packaging she came in and she'll fit back in the box just fine.
That is what I will probably do if I pack her back up. Honestly though, I never want to because this thing is beautiful!!
Concerning the back pistons, I also had the same problem. They don't even move that well now to be honest. They seem stuck but I guess that is fine because I am not going to be moving it around all the time.