Custom Design Software for Shopify Integration

I DO NOT NEED A WEBISTE. I'm looking for a talented software developer to create a design tool that integrates with my Shopify store. The software needs to allow customers to design their own modular and custom closets, with specific features, payment methods, and design options.

Key Requirements:
- The software must have a drag-and-drop feature, real-time pricing updates, and 3D visualization capabilities.
- Customers should be able to use a combination of pre-designed templates and custom design from scratch.
- All payments for designs should be done via direct checkout on Shopify.

The tool must be exactly like the Easy Closet Systems design tool, with 17 squares to work with.
https://chi-llc.com/17sq-web-based-3d-design/

I need this done urgently, within 5 days. All passwords and login information for the system will need to be provided to me.

Skills and Experience:
- Shopify development experience is a must.
- Expertise in creating interactive design software.
- Familiarity with implementing real-time pricing and 3D visualization.
- Experience with secure payment system integration.
- Ability to deliver high-quality work under tight deadlines.
- Manage inventory

Please see the reference link for the design tool: https://www.modularclosets.com/pages/closet-design-tool?srsltid=AfmBOopZFOlripxm7jHFACBSB3Ah84pgvxxVGnADnF_TQpDmdk-8hYW8