Revision Bitrix

it is Necessary to make complex modifications on the website on 1C Bitrix.
1.Configure the geolocation module with a redirect depending on the city.
At the moment there are about 20 geographical zones, each zone has its own code. and user.

2 to Create a personal account, which depending on the user will be presented with all the orders from the geographical area, which is tied to the user.

3. To allow the user to change the order status and leave a comment on the order.

4. To set the mail event to send a message about a new order to the user geographical zone.

Write in the comments time and price.