I always think that the right kitten chooses YOU, and not the other way around. Given that THIS particular one has made such an impression, then maybe she has made up her mind already?

Re the issue with the introductions - I am not sure what to advise, especially as you already know how Peppito reacts to stressful situations. I am probably the worst person to advise you, as I followed all the " rules" and after two years mine still fight on and off!!

Could you get some meds for Peppito ahead of time so when the kitten comes home he is already mellow and calm.

Good luck with your decision - it's hard to help at these shelters without getting attached, isn't it?