If you don't mind swapping sims without the lots, or just packaging the sims and lots separately, there is a way. Open SimPE, open the neighborhood. From there, open sims surgery and find your sim. Select use, then extract. Close sim PE, open Body Shop. Go to create or clone sims. You will see your sim there. Clone this sim without changing anything, then make a clone of the clone. This is the only useable one, so make sure to delete the others after cloning. Then you can package the sim to send to your friend.