React Native Warehouse App Customization

I have a pre-built React Native template for a warehouse/inventory management app that requires customization for deployment.

The tasks include:
- White labeling the app (logo, colors, app name).
- Adding Arabic and English language support.
- Implementing a renting system (by m² or m³).
- Integrating payment gateways (QPay, Apple Pay, Visa).
- Enabling customer login to view their own stock and receive notifications.

I need a new logo designed and I'm looking for assistance in choosing a vibrant, bright and bold color scheme.

Please provide:
- Portfolio
- Total cost estimate
- Delivery timeline

Ideal Skills & Experience:
- Experience with React Native development
- Strong background in app customization and localization
- Proficient in integrating multiple payment gateways
- UI/UX design expertise, especially in vibrant color schemes

Looking forward to your proposals!