Hey there Delusions!
I think Kami is a cute name for a Dream Ball Arceus. I already have an ENG one, so the Japanese one sounds cool. We can do that for the NA Hoenn hat Pikachu. I am currently moving this weekend, so I won't be free until next week.
As for proof for 3rd gen, there are some pretty extensive lists on known legit events and some hacks. I'd love to get your Deoxys, but it's kinda hard to judge when it doesn't exist yet on those lists and when a person claims they caught it themselves. I believe you, but I just err on the side of caution. I've been burned a lot on 3rd gen events, and that's why I decided to not trade for them unless there's definitive proof, which is difficult to obtain when those games are over a decade old.