Build a Website

Complete management system web-based We are working with fiber optic installation service, we have client and we have suppliers. We need to manage the projects and inventory. We want to be able to attach files (such as invoices and quotations) to the projects. Also because we need to track payable and receivable payments. System should have the following - users with privileges - notification system - inventory management (and cost calculation for the items as every time we order the cost will vary depends on the delivery cost, so each time we receive a shipment we want to enter all the items together and put the delivery charge and the cost of delivery will be added to the item cost) - project management page (where we add new project details) - project plan page (the ability to create project plans by dates for every project that can be printed on PDF) - project list page where we can find all the project listed with different colored depends on the projects status. - Project page (each project must have a page so we can track/update/see the materials used in that particular project) - Event handler page (calendar), which will be integrated with the project starting/ending date and shall show notification.