EAN Profit Calculator Tool

I need a web-based tool to assist with profit calculation. The tool should allow me to upload an XLS file with EAN codes, buying prices, and margins for over 100,000 products.

Key Requirements:
- Upload EAN codes, buying prices, and margins via XLS.
- Fetch data from Amazon and eBay, including:
- Current and future prices
- Competitors
- Amazon as a competitor
- Cost of FBA
- Commission
- Profit calculations
- Export data in a structured format, including:
- EAN code
- Lowest price
- Calculated margin, etc.

Ideal Skills and Experience:
- Experience with web development
- Familiar with data scraping from Amazon and eBay
- Strong background in profit calculation tools
- Ability to handle large datasets efficiently

Please provide a final price for the complete project.