Full-Stack Developer for Auto Body Shop Platform

I’m looking for one experienced full-stack developer to complete an existing bilingual (English/Spanish) auto body shop platform. We already have approved website renderings, a visual reference package, and an implementation in progress. I need someone who can review the existing code, reuse what works, and deliver one connected, functional system that follows the approved design. Scope * Public website matching the approved design on desktop and mobile, using the approved logo and shop imagery. * Working estimate request with vehicle photo uploads. * Interactive before-and-after gallery using separate image pairs and a working comparison slider. * Service, classic restoration, insurance assistance, and rental inquiry sections. The shop currently has one rental vehicle, so do not present it as a fleet or promise availability. * Client portal for repair status, estimate approval, messages, invoices, payments, and documents. * Simplified owner dashboard to manage inquiries, estimates, jobs, schedule, gallery/content, payments, and customer updates. * Owner notification when a customer sends a portal message, with a secure link to the relevant conversation. Please explain the proposed WhatsApp integration and any ongoing costs. * Payment integration for online and in-person payments, designed so the provider can be changed later. * Functional English/Spanish content, buttons, forms, and navigation. The approved renderings are design references, not finished source images or working code. Please identify any missing original assets before quoting. I will share the current site, code, and visual package privately with shortlisted candidates. Please include in your proposal: examples of comparable work you personally completed; whether you can take over an existing codebase; what you would reuse or rebuild; your fixed total price, timeline, and any third-party or recurring costs. Please distinguish required work from optional enhancements. I’m looking for a cost-conscious solution with clear, testable deliverables.