I need a production-ready micro-SaaS built in Bubble that lets European importers work out their exact landed cost and margin, then export polished PDFs for their records or stakeholders. Phase 1 is fully specced and focuses on the core calculator, subscription handling and a clean, business-grade interface—clarity over fancy animations. Core features for this first release • Secure user login and account management • Stripe integration for recurring subscriptions and pay-per-export credit packs • Landed cost calculator covering product cost, FX, freight, customs duty, VAT, clearance fees, with instant net / gross outputs and optional selling-price-to-margin projection • Save, duplicate and revisit calculation scenarios • PDF export (gated as a paid feature) • Lightweight admin dashboard for user, plan and credit oversight Tech stack & plug-ins Bubble.io for the entire frontend / backend, Stripe.js or native Stripe plug-in for payments, and a reliable Bubble PDF generator. The database must be structured for easy extension—additional tools will plug in later without refactoring. What I’ll hand over • All formulas, logic and validation rules • Wireframed UX flow and page hierarchy • Final copy and test data / scenarios What I’m looking for A Bubble specialist who has launched SaaS products before, is comfortable wiring complex Stripe workflows and can follow a crystal-clear specification without deviation. Clean, maintainable Bubble workflows and states are essential; no “magic” hidden in plugins or custom code unless documented. Timeline & collaboration The build should be wrapped in approximately 3–5 weeks. I prefer a fixed-price arrangement with milestone reviews (MVP complete → payment flow live → PDF export polished → final polish & hand-off). Please share one or two live Bubble SaaS links that demonstrate your payment and export integrations when you apply.