[OPENCART] Module developer needed

I need someone to develop module for Open Cart: Module: Payment in Installments Description: This module is used by admin to sell "offline", in physical store. The buyer chooses his items, the admin create the order, but the payment is made in installments, the admin selects how many payments and the module gives an option to print - lets call it "promissory note". So, if it's 3 payments, theres 3 promissory notes for each month, the admin prints, the buyer signs. Sell is done. Features: - The admin must have an option to mark every promissory note as "paid". - Situation: buyer makes an order, in installments (for example 10x). If 4 months later he decides to buyer another item and did not paid 1 or more previous installments, the module must warn the admin, and the admin decides if will sell or not. - This module must show on dashboard installments not paid to the date. Module: Conditional Sell Description: This module is used by admin to sell "offline", in physical store. The buyer chooses his items, the admin create the order, but there is NO PAYMENT. (yes you read it right). The buyer BORROW the order items. The module must print a letter (not a "promissory note"), the buyer signs, and "sell" is done. Features: - This module must show on dashboard items not returned in 48 hours (admin must set this value). Must display the number of order and buyer's name; - Must have and option to convert this order in to an REAL order, in order words, to attach a payment to this order. (Can be an normal payment or "conditional sell") - When buyer decides not to buy and gives back the items, the module must "cancel" the order, let's assume it's an returned item/order For both modules: - Must have and admin area for these items, with full description of orders, installments, conditional sells and everything else related; - Must create an option to VIEW ONLY client details (not only update link) on this page: http://<SITE>/admin/[login to view URL] And, in that view details page, list his orders, payment method, etc; [IMPORTANT]: When admin creates an order on his physical store, obviously he is not logged as client, so he must be able to create and order and select a previous registered client.