Finalize JSON Dairy Wholesale Site

I need assistance to finalize a JSON-based website for the wholesale side of my dairy company.

Key Requirements:
- QuickBooks-friendly output file in CSV format
- Include both order details (items and quantities) and customer account information
- Automated email order confirmation
- Order summary with customer details
- Ordering system
- Organize dairy products by product category (e.g., milk, cheese)
- Customers will select per unit or per case, no monetary values involved

Ideal Skills and Experience:
- Experience with JSON and website development
- Familiarity with QuickBooks and CSV file formatting
- Strong email automation skills
- Background in e-commerce or wholesale order systems