Wedding in Tirupati

My fiance and I are planning to get married in Tirupati temple and wanted to know how does this really work? We don’t want to do it for free in front of strangers. We want a private ceremony.
If anyone has had their or their relatives wedding in Tirupati can help us?

1. How much does it cost?
2. Any photos of the venue?
3. What are the prerequisites for getting married there?
4. What should we be prepared for? Positive and negatives both
5. Any suggestions or general comments