Well, after 10 months I'm giving up. I'm a failure and certainly not a cat-whisperer. I can't get Amelia, Callie Mae & Vante to integrate. They won't even ignore each other peacefully.
Let me rewind to this morning: I've placed screen on my bedroom door where Amelia & Callie are sleeping in the chaise. Vante and I are lounging, reading and drinking coffee. The coffee must have gone straight through Vante because she goes to her room and I continue reading. About 5-10 minutes later all Hell breaks out in my guest bedroom/sewing room. Amelia is on her back, claws unsheathed and Vante is about 6 inches away towering over her. There is black, white and all sorts of hair on the surrounding floor and also PEE! And not just your ordinary urine, but pungent, clear-a-room type pee. It's on both cats, my light box, the carpet and even some new fabric!
It was terrible. I separated them, cleaned the carpet, light box and have washed the fabric. The room still doesn't smell right, so I'm going to get the carpets cleaned and I'm calling it a 'Day' for the integration process.
Unless a cat-whisperer or a cat psychic shows up on our doorstep - I quit. We'll just keep them separated and they'll have to take turns over who has the run of the house. I'm going to see about installing some cat shelves in their bedrooms so they have some vertical space and can see out the tiny windows at the tops of our walls. Hopefully that will keep them mentally stimulated while they're stuck in their room.
I love all three and had high hopes that I could somehow make this work - I was wrong. ~Sigh~