Interested in your Shiny Gyarados. I have a Hasty Shiny EV'd Rayquaza that I could offer. I'd offer other shinies, but the other ones I have you already do, albeit a little different in movesets and stats. LoL. Anyways, if that doesn't fly, I could always offer maybe two non-shiny EV'd for it? (unless you don't care if it's shiny or not, cause I could care less if something is shiny or not, I just go by the stats). ANYWAYS, lemme stop babbling.
I also have an EV'd Hasty Palkia, Timid Latias and Modest Shaymin.