As far as putting the older one with her sister is they were split up at about 8 weeks old so they realy arent close. I am gonna let them bay with an older dog i have that the younger pup is penned up with. Hopefully she will follow his lead.
That should work! Just someone to get them fired up and cworking and then can be removed once their attention is towards the hog. Good luck! I always love working with the puppies!