Develop two vtiger modules

The project is based on the development of two modules for the vTiger CRM according to the API develop by vTiger community. The modules to be developed are the following entities: Packing Slip and Production Order. Production Order Module This module is basically equal to sales order or request. The same fields except that the name is Production Order. How to create Production Order - create packing slip from salesorder - create packing slip from quote - create packing slip by itsself Output: - create pdf output Necessary fields: Product Quantity Process (Free text) Description Reference Account, Contact, etc. Packing Slip Module This module is basically equal to sales order or request. The same fields except that the name is Production Order. How to create packing slips: - create packing slip from invoice - create packing slip from salesorder - create packing slip from quote - create packing slip by itsself Output: - create pdf output Necessary fields: Delivery Address Delivery Status Packing Slip No. Tracking No product description quantity serial no. Deliverables Are expected. Zip files which will be imported to vTiger version 5.2.1. You must provide all files in PHP with details of each module properly comment so as to allow future changes and updates to the code. Additional information * Please check everything for a correct quote. * The module should allow the translation thereof into English or Spanish depending on the language in which base is developed. * Once awarded the job queries will be answered by Skype, telephone and e-mail