^^^ I'm not entirely sure about the EVs, actually; if those were custom EVs of your choice, they're fine for Wish Vaporeon. But if they were specific to that SubRing set for whatever reason, you could look into something more fitting. I'd think they were fine.
Do you know the details of Hidden Power? If not, this should explain it.
If you just wanna know what the best IVs are to get HP Fire, then at the bottom of the page, you'll see a list for each HP Type here.
It's not easy to get a good Hidden Power in-game, that's for sure... Pokegen is one hell of a boon in that regard. /lazydouche
Not a problem, bro.