Quote Management

Need to build app for creating and managing quotation for Items having multilevel BoM. In this we need following modules
User Creation / Editing / Delete with restriction
User Rights
Customer Creation / Editing / Delete
Project Details for which Quotation is to be prepared
Quotation Module
Item Module - RM
Item Module - FG
Master BoM - Creation / Editing / Delete with restriction
Quotation BoM - Creation / Editing / Delete with restriction (This will be prepared based on Master BoM or from another Quotation BoM in synchronization of Project Detail)
Getting Costing for FG to be quoted based on Quotation BoM and Item Module - RM