Its so difficult to know when the right time for another cocker is. When I lost Indie I waited because I thought I would be betraying her memory, but in the end I wish that I hadn't, because Misha really helped me through what was an awful and lonely time (the house was so empty), and I know that Indie would have loved her as she was intended to be a playmate for her. When I first joined COL I mentioned that I had lost a dog recently and someone had replied that they were glad that I had Misha to help mend my broken heart, and thats exactly what she did.
I know that you have some wonderful memories of Gari and I feel very privileged to have been able to read about this cheeky chap. Only you will be able to decide when the time is right, but I hope you won't wait too long.