Please help

[Megz]

I'm trying to complete the pokedex but I need a few legendarys but I don't want to catch them because I want to get some shiny legendarys when I've got the shiny charm these are the pokemon I need

Ho oh
Mesprit
Articuno
Moltres
Lugia
Giratina
entie
Suicune
Riahou
Cresselia
Regigigas

I know is a lot but if you help I will give you a shiny and I promise I will trade them strait back to you I just want them for my pokedex .please :D