PHP, codeigniter work for inventory system

THIS NEEDS TO BE STARTED IMMEDIATELY I am looking for below application to be customized. [login to view URL] This is developed in codeigniter , PHP developer who can do the following features Billers Features 1. Rename Billers – Market Place 2. On Add , user must be able to enter shipping charges ( from 0.5 kgs to 10 kgs in the crement of 0.5 Kgs) 3. Create a Column in Category table with Marketplace name Category Features 1. When creating a category, Commission % must be entered for each Marketplace Customers Features 1. Customer Name, City – only these 2 fields should be mandatory Manufacturer Features – New Menu [login to view URL] the Manufacturers [login to view URL], Edit, Delete Manufacturer [login to view URL] Name Products Features 1. Add below fields a. Manufacturer b. Weight c. Volumetric Weight d. Packing Cost e. Commodity code f. Length g. Breath h. Height i. MRP 2. Able to Active, Deactivate a Product – once deactivated it can’t be billed Purchase Features – New Menu 1. Ability to return the purchase, inventory must be adjusted accordingly – similar to Sales Retun Quotation Features 1. Quotation must be renamed as Orders a. Add a field Weight and show the weight of the item b. Add fields L,B,H and show those details c. Add a field Commission and show % and Rs 2. Shipping charges must be automatically calculated and filled on shipping charges field 3. Ability to select multiple orders and do bulk invoice 4. Import Orders Via CSV ( Fields Customer Details, Order Detials) Sales Features 1. Ability to select multiple invoices and do bulk Payment, Delivery, Return, 2. Ability to print multiple invoices in one shot Reports 1. Reports must be changed accordingly to reflect these change Developer help doc is avbl. [login to view URL] If you an experienced person, work can be completed in 2-3 days