ROM Hack HGSS edit -> Need help!

[brtatu]

Hey people, I'm doing a semi-remake for Fire Red/Leaf Green and I need to change between Red and Gold's Sprites (the "hero" will be Red). I also need to change all hero's sprites like mugshots, front&back sprites etc. However, I don't know how to do it despite it seems to be easy. So I would like to ask someone to do it for me.

Here are the sprites:

 

[Hyrule Pokémon Trainer]

Can i use the sprite Red sprite (Posso usar o spriteh do Red)?

 

[ashinnblunts]

http://gbatemp.net/threads/pokémon-heart-red-red-blue-remake-for-nintendo-ds.393439/

 

[brtatu]

Can i use the sprite Red sprite (Posso usar o spriteh do Red)?

Pode sim, é só me dar os créditos