I need custom code for drupal commerce_kickstart

site is based on drupal commerce_kickstart, I need to implement the pickup option on checkout page, and adjust order confirmation accordingly.
Currently Billing and Shipping address is showing on checkout page, order cofirmation, etc. if user select the pickup option than Shipping option will be HIDE and is replaced from Pickup Address (= Store Address)

Checkout process:
/checkout/[order-id] > Customer insert billing address and choose shipping service

/checkout/[order-id]/shipping
- delivery > shipping address is printed on* (this is a default behavior)
- pickup > pickup/store address is replacing shipping address everywhere* (need custom code?)

Pages to modify:
* - checkout pages
* - order conformation page at /user/[uid]/orders/[order-id]
* - order confirmation emailed to the customer.
* -order views in admin panel

dev url: http://enriart.rezzoli.com
admin login: developer_1
admin password: developer_1

Pls note that I tried to use commerce_pickup module, but it's not 100% working.