Improve design of my service packages on my website. Create a form.

I'm looking to improve the user experience on my WordPress website https://kodulehehaldus.com/ by introducing interactive and dynamic service package selections with real-time pricing calculations. The website is bilingual, and these improvements will need to function in both languages.

In simple terms I need a form. Estonian and English. Site has WPML

Core Requirements:

Interactive Service Selection:

Implement a select-and-drag feature for service packages.
Provide visual animations or transitions as services are selected.
Real-Time Price Calculation:

Develop a feature to update total price instantly as users select or customize their packages.
Display the updated price in a side panel or fixed footer for constant visibility.
Multilingual Support:

Ensure all new features work seamlessly in both languages available on the website.
Customizable Packages:

Allow users to add or remove services from standard packages, which should impact the total price dynamically.
Customer Detail Collection Form:

After package selection, include a form to collect customer details: First Name, Last Name, Email, Phone, Business Name, and Business Address.
The form should include validation and a user-friendly layout.
Post-Form Submission Call to Action:

Automate a call-to-action for clients to install the Worker plugin from https://wordpress.org/plugins/worker/ after they have submitted their details.
Provide instructions for website ownership verification with a connection key entry field.
WordPress and Avada Theme Compatibility:

Ensure all new features are compatible with the WordPress platform and Avada theme.
Backend integration is required for dynamic content management and form submissions.
Testing and Feedback:

The system should be thoroughly tested across all browsers and devices.
Collect and analyze user feedback for continuous improvement.
Skills Required:

Expertise in JavaScript for frontend development
Proficiency in PHP and WordPress development for backend integration
Experience with responsive design and cross-browser compatibility
Knowledge of the Avada theme is a plus
Deliverables:

A fully functional, interactive package selection system integrated into the current website
Backend logic for real-time pricing and form submission handling
Documentation on the usage and maintenance of the new features