Customize Trip Booking App Solution

I need an experienced developer to customize an existing booking/marketplace solution for a trip booking app, specifically for bus and shuttle services. I'm looking for developers who have ready-made solutions that can be quickly tailored rather than building from scratch.

Key areas for customization:
- User Interface: Need to enhance the look and feel.
- Payment Gateway Integration: Must integrate with multiple payment gateways.
- Booking Management System: Customize to meet our specific operational needs.

Essential Features Only
Basic Booking Flow
Route search (origin/destination)
Date selection and passenger count
Simple booking form
Payment integration (PayFast for RSA)
Operator Management
Simple operator registration
Route/schedule upload (CSV or manual)
Basic booking notifications
Digital Vouchers
Email confirmation with booking details
Simple QR code generation
SMS integration (optional for budget)
Admin Panel
User management
Booking overview
Basic reporting
Nice-to-Have (If Budget Allows)
Group booking functionality
WhatsApp integration
Advanced operator dashboard
Mobile optimization


Technical Requirements (Simplified)
Must-Have
Responsive design (mobile-friendly)
PayFast payment integration
Email notifications
Basic admin panel
Secure hosting setup

Application Requirements
Please Include in Your Proposal:
Existing Solution: Link/demo of your current platform or script you'll customize
Customization Plan: What changes you'll make for app
Timeline: Realistic timeline for customization work
Portfolio: 1-3 similar customization projects

Only existing solutions with Demo will be considered as we need this completed fast.

Please provide examples of similar projects you've completed.