Flutter Mobile App Customization

I have purchased a Flutter mobile app source code from Codecanyon. The seller has provided the complete source code along with a step-by-step customization guide.
I am looking to hire an experienced Flutter developer who can fully customize the app as per the provided guide and deliver the updated source code along with a working APK file.
# Scope of Work
The developer will be responsible for:
Changing App Name
Updating App Logo / Splash Screen
Modifying Package Name / Application ID
Updating App Icon
Configuring App Colors & Branding (as per guide)
Updating Firebase / API keys (if required)
Fixing any build or dependency issues
Building and providing a release APK
Ensuring the app runs without errors
# Deliverables
Fully customized Flutter source code
Release APK file
Confirmation that the app builds and runs successfully
Clean project with no build errors
# Requirements
Strong experience with Flutter & Dart
Prior experience with Codecanyon Flutter apps
Knowledge of Android build & APK generation
Ability to follow provided documentation carefully
# Timeline
Expected completion: 1–2 days (can be discussed)
# Budget
Fixed budget / Open for reasonable bids
(Please mention your price and estimated delivery time)
# Additional Notes
I will provide:
Full Flutter source code
Customization guide
Required assets (logo, app name, package name, etc.)