You're barely catching me. I'll send you the Jirachi tomorrow.
As for tips about getting an at least tolerably IVd Jirachi, all I did was save right in front of the man in green at the Poke Mart. After the save, get the Jirachi, and check it's IVs and nature.
If you don't have AR to check IVs with, here's another small tip. It doesn't promise you amazing IVs, but if you see 26 in HP, and 17 in it's stats (or a 16 in the minus stat), you will have IVs of no, less than 17 in any of those stats. If you have AR though, just keep resetting, and eventually you will get lucky.