My Pokedex isn't too great either. Not even on my Fire Red that I started a new game on a while ago, since all my strongest Pokemon got transferred over to HG. I don't like how we can't purchase game coins anymore so I'll get the game corner items from FR.
If Vulpix exists in Diamond, I'd be interested in a female one. Otherwise I'll have to snag me one from XD.

In exchange, since I don't have much Pokemon and the fact that we both have HG, would probably be the game corner items from FR. I can't be prepared by this Wednesday to do this lol.
IV battles has to do with being in a battle as level 100 to check the stats to calculate for an accurate IV with, no actual battling being involved. EV is something we have complete control over, whereas IV is already set the moment we acquire the Pokemon (or egg if bred) and cannot be changed. It's like Pokemon genes.