I agree with the others - have your plans ready, but be prepared to ditch them and just go with the flow as necessary! We had the crate all ready for Merlin, but he HATED it, so much that after six weeks of 4:00 am crying we gave up and just let him sleep with Poppy...
The only hard and fast advice I would give you, is be careful to give Vanilla lots and lots of attention; make time with the puppy fun for her but give her every opportunity to escape when she needs peace. Take time to do fun things with her on her own, as well. If she doesn't feel the puppy is a threat or in competition, she will likely accept her very quickly.
The only hard and fast advice I would give you, is be careful to give Vanilla lots and lots of attention; make time with the puppy fun for her but give her every opportunity to escape when she needs peace. Take time to do fun things with her on her own, as well. If she doesn't feel the puppy is a threat or in competition, she will likely accept her very quickly.