Thanks for replying. I've thought quite a bit about this, and I agree with you somewhat. I certainly don't have unrealistic expectations of the exact same dog being reborn. However, there is obviously a nature/nuture question here, and I think with a very similar upbringing/training, the dog could certainly be very similar, but I'd feel very lucky just to have a similar dog, and certainly wouldn't put a ton of pressure towards her in her upbringing.
At any rate, I obviously haven't made the final decision to go forward with it - as I mentioned, not until things advance quite a bit - I just want to make sure I have the option.