Robust AutoSales Classifieds Platform

I am building a full-scale automotive classifieds site that serves both private sellers and licensed dealerships. All vehicle ads will be created through prepaid packages, so the flow for choosing a package, paying, and activating the listing must be seamless and secure. See Carsales.com.au Core marketplace features • Separate account types for private sellers and dealers, each with its own dashboard for managing ads, messages, and profile details. • Advanced vehicle search (make, model, year, mileage, price range, location, body style, fuel type, transmission, etc.) with results that automatically boost paid “Featured” ads. • Sponsored banner zones that can be sold per page or site-wide and managed through the back office. • Dealer spotlight pages that showcase a dealership’s logo, description, contact info, and a carousel of their featured inventory. • Responsive design, fast loading, SEO-friendly URLs, rich snippets for vehicles, and social sharing buttons. • Admin panel to create ad packages, set pricing, schedule promotions, review/approve listings, refund or credit users, and pull performance reports. • Payment gateway integration (Stripe or PayPal preferred, but I’m open to your recommendation) with automated invoicing and receipt emails. Acceptance criteria 1. A private seller can register, purchase a package, post a vehicle, and see it live after payment confirmation. 2. A dealer can bulk-upload stock (CSV or API), purchase spotlight placement, and see their vehicles elevated in search. 3. “Featured” ads always appear above standard listings and are visually tagged. 4. Sponsored banners can be activated, rotated, paused, or replaced from the admin area without code changes. 5. Site passes Google PageSpeed “green” scores on both mobile and desktop. 6. Codebase is delivered with installation instructions and a short video walkthrough of key admin functions. NOTE >>>>>>>>>>>> This site must be tied into our FLAGSHIP SITE where we offer REWARDS to every member. >>>>>>>>>>>>>>>>> If you have existing modules or an open-source base you can customize quickly, let me know; otherwise, I’m fine with a build-from-scratch approach in Laravel, Django, or another robust framework you trust. I value clean code, clear communication, and milestones that demonstrate steady progress.