Budget: 3000 USD Deadline: 30 days
WE can build this as a lean MVP, but I would keep the first release deliberately narrow - fund pages, project pages, Supabase auth, investor dashboard, admin updates for payments and returns, email notifications, and an audit trail for manual payment receipts.
$700 is probably enough for a very small prototype, not for a secure investor platfom. A realistic first production MVP is closer to $2,500-4,500, depending on reporting, roles, and compliance wording. I would start with a paid architecture and prototype stage, then implement only what is needed for launch.
Two questions before a precise estimate
> Should users invest only after admin approval, or can they create an investment record themselves after uploading a receipt?
> Do you need only investor and admin roles for the MVP, or several investor types?
Relevant work
> https://business.ingello.com/vorfahr - SaaS automation with product logic and scalable architecture
> https://business.ingello.com/platforma - business platform with roles, dashboards, and operational processes
> https://systems-fl.ingello.com - Ingello Systems profile for complex software and automation
My implementation view - Next.js, Supabase, role based access, structured investment records, manual payment verification, dashboard metrics, admin panel, and clean separation for future Mercado Pago or local bank integration. No magic, just boring engineering that saves money later. Well, mostly boring =)-