Shopify Developer Needed, Dynamic Threejs Configurator Pricing in Cart & Checkout

I’m building a custom product configurator using Next.js/React + Shopify Storefront API. The customer can configure a product by selecting multiple options, and each option can add an additional price. For example: * Base product: $100 * Leather option: +$30 * Web option: +$20 * Embroidery: +$15 * Final configured price: $165 The configurator already calculates the final price on the frontend. The main challenge is: How can we make the configured price become the actual Shopify cart/checkout price without requiring Shopify Plus ($2,500/month)? What I need I’m looking for an experienced Shopify developer with strong knowledge of Storefront API, Shopify Functions, Cart API, variants, and checkout who can: 1. Analyze my current Next.js + Shopify implementation. 2. Determine the best architecture for dynamic configurator pricing on a normal Shopify plan. 3. Make sure the actual amount charged at checkout matches the configured product price. 4. Ensure the solution works correctly with Shopify's cart and checkout.