Moodle multi-tenancy design and development

Requirement : Design and develop a moodle multi-tenancy environment for multiple schools Virtually isolated environment of same instance Capability to share and assign the same course to multiple schools All moodle feature to be intact but school access is limited to only their school student Phase 1: Design detailed architecture document What technologies to be used Complete workflow with design (Architecture) Provide list of change with complete approach to solve multi-tenancy Exp Database, Code, plugins etc Phase 2: - Complete code development Setup and installation All moodle should pass all unit testing post development Warranty and bug fix for 3 months Please respond with below details Have you ever implemented multi-tenancy for schools? Respond with approach to solve phase 1 and phase 2 requirement Quote separately for phase 1 and phase 2