Give me a few minutes, I've made a bunch of them. I'll post their specs.
All righty, here we go:
Name: JIRACHI
OT: WISHMKR
ID: 20043
Ball: Poke (standard)
Hoenn
Arrived at lv. 5
So, make sure it's Pal Parked from R/S. I don't think the secret ID mattered for this one, but I know I made it 00010 for my Celebis. If you use your own secret ID and it fails, let me know.
Don't give it any ribbons, and don't make it shiny. It will be denied.
I've gotten Celebi and Darkrai onto wifi successfully too, so if you want their specs, I can dig them up, though Darkrai pisses a lot of people off and you won't score many friend passes.