Greeting EPi-gurus!

I'm trying to figure out how to get Content Provider to work.
I have to different EPi-sites, with two different databases and I have access to both of them.Let's differentiate the two sites by giving them the nicknames "Provider" and "Receiver".

The Provider has got a few pages based on the Page "ContactPage".I want to be able to read these pages in the Receiver by using ContentProvider.
All of the instructions I found on the web are either outdated and only work CMS Versions below 7. 

I understand the following:

1. I have to create the same PageType in the Receiver site as in the Provider site.

2. I have to enter the contentProvider in the webconfig for Receiver with an entry point. 
Something like this...

3. Add a new connectionstring to access the Provider Database.

4. Create a class which inherits ContentProvider which reads the data from the Providers Database and maps it correctly according to the PageType created in step 1.


I have no idea on how to to the last step and can't find any instructions on this matter.

Please help or point me in the right direction / a link to a guide on how to approach the subject. 

Regards,
Chris