Vehicle History Lookup Site Development

I am looking to create a website similar to Olho no Carro (https://www.olhonocarro.com.br) that will allow users to perform vehicle data consultations using information such as the license plate number or other relevant identifiers. The website will provide detailed reports on vehicles, including information such as ownership history, registration status, fines, vehicle condition, and more.

Key Features:
User-Friendly Interface:

The website should have a clean, modern, and intuitive design that is easy to navigate for all types of users.
Users should be able to input vehicle information quickly and receive results efficiently.
The site should be responsive, working seamlessly on both desktop and mobile devices.
Data Retrieval through APIs:

We already have the necessary APIs for retrieving vehicle data from reliable sources. Your task will be to integrate these APIs into the website.
The data must be presented in a clear and easy-to-understand format for the user.
Secure Payment Gateway Integration:

Users will need to pay for each consultation, so the website must integrate a secure payment gateway (e.g., Stripe, PayPal, MercadoPago) to handle transactions.
The system should allow for different pricing tiers based on the depth of the consultation (basic, premium, full report).
User Accounts and History Tracking:

Users should have the option to create an account where they can track their consultation history, access past reports, and manage their payment options.
There should be functionality for users to download or export reports in PDF or other formats.
Admin Panel:

I will need an admin panel where I can manage user accounts, view transaction history, and monitor the overall performance of the site.
The panel should also allow for easy updates to API integrations, content, and site settings.
Scalability and Performance:

The website should be designed to handle a growing number of users and consultations without performance degradation.
It should be optimized for fast load times, particularly during data-intensive consultations.
Security:

Ensure that all data is transmitted securely, with encryption where necessary (e.g., for payment processing and personal data).
Implement necessary security protocols (SSL, firewalls, etc.) to protect user data and the integrity of the platform.
Next Steps:
Please provide an estimate for the time required to complete this project and your experience with similar API-driven websites. Let me know if you need more information about the APIs or specific data that will be retrieved.

I am looking for someone with experience in:

API integrations
Website security and payment gateway integration
Creating clean and efficient user interfaces
Scalability and performance optimization