Build Modular ERP From Scratch -- 2

I need an end-to-end, fully modular ERP developed from scratch. The system must launch with the following functional blocks already working together: • Sales, CRM, and invoicing • Inventory, purchasing,... (Budget: ₹75000 - ₹150000 INR, Jobs: API, Cloud Computing, Database Management, ERP, Full Stack Development, MySQL, PHP, Software Architecture, Software Development, Website Design)