Have you ever tried mailing the owner of the pet you first created? :o
I have the same regret as you for no. 2. Maybe over 10 years ago I did the same, pound transferred my fav named uc dari zaf to give to my sibling who played at the time. This was during the time when we only had 1 transfer a month, done pound transferring a few times with no losses until that day of course haha. Tried mailing the owner to see if they would trade, I think they either never replied or ignored. I still check the lookup every now and then. The account is just now rotting on a long long time ago
Good thing is I was able to obtain another dari zaf some years after, but that one had a nicer name. A lesson learned though!