Paid Plugin or Customization is required as bellow

Dear Developers,

I love elgg. I love it, but I now need the following features / modifications, and kindly please let me know if it is possible and how much will it cost, and method of payment. 

1. Modifications: Restricted to login page

Here I need consistent site header front end blue/purple background color that we see with login. as shown bellow:

2. Post Login

 

3. Wire Post / Posts

4. Likes - Emoji - Comments - reaction

comments

 

checkout - https://demo.opensource-socialnetwork.org/login