It's not weird at all to want another look-alike kitty. I did the same thing when my Goldie died a couple of years ago. Mishi was rescued by AnimalSavers (she's also up in the Sacto area) from the exact same death-row. From what I've heard about that place, it IS evil.

So sorry for your loss. You'll know the right cat and the right time; if it feels right, it is. I've learned to trust my gut.