1. Where do you live? Location plays a huge role in how much is fair pay.
2. Will you have direct reports or just be a team lead? The difference being if they are direct reports you would be responsible for doing their performance reviews and other manager type stuff.
3. While not really related to your question, I'm curious, why would your internal procedure manual website need social media functionality? That just sounds like someone heard some buzz words and thought they should have it.