Add tracking pixels , Layout additions , Email automations

1)I need to integrate and add a tracking code to my Shopify website Plus I need some automation - when a particular discount code is entered in my website , on checking out ,an email should shoot out to a particular email address. 2)Layout additions/customizations : -an extra field added when order placed , few layout placement changes and additions -add extra text on certain products -add subscription popup and subscription to blog -cart page to be customized -homepage,login button to be added,login via facebook integrated -add certain text onto homepage , remove some incorrect fields 3)add client diaries/pictures tab 4)add blog tab - and set certain templates for blogs 5)add our story page