wordpress modification

I have a wordpress directory theme (its based on custom type post) in that theme i need to be done 2 modifications 1, Change the default user photo to user uploaded photo in profile, dwqa plugin and buddypress and all related user photo should be modified (Right now the user photo is based on gravator profile photo) 2, In Blog post page the user profile photo should be shown inside or below the page. Its a very small work, i am looking for low fees freelancer with good experience.