GoHighLevel Expert Needed to Build Complete SaaS Workflow Platform From Existing Technical Specification

I have every screen flow, message sequence, and data map for our new Accounts Receivable reminder platform, Remynd, fully documented. All strategic thinking is done—I now need someone to translate that blueprint into a working GoHighLevel (GHL) account without deviating from it... (Budget: $250 - $750 USD, Jobs: Automation, CRM, Data Integration, Email Marketing, GoHighLevel, HTML, MySQL, Payment Processing, PHP, Software Architecture)