Create a simple WordPress plugin to customize some functions in edd

i need a developer experience in Easy Digital Downloads (WordPress Plugin) to Customize EDD usage. my website created with WordPress & DGWork Theme and this plugins 1- Easy Digital Downloads By Easy Digital Downloads 2- Easy Digital Downloads - Software Licensing By Easy Digital Downloads 3- EDD custom checkout fields By Omid Shamlu and of course others .. Rules: 1- It must be a plugin so will be easy to update or deactivate it ( not just code modifications). 2- The Freelancer should have good experience with EDD. 3. Each feature (the required features) can be deactivated or activated (on/off) from the plugin page. [login to view URL] the future, Each Added feature will be for extra money. 5- i will Select the freelancer based on the experience & Cost. 6- the winner must be available in the next jobs for us and our customers. The required features: ================================= 1- When the buyer try to activating the license or checking it (using Software Licensing API) sends the date of purchase, the company name (where the company name is a custom field created by EDD custom checkout fields By Omid Shamlu). the current result : { "license": "valid", "item_name": "EDD Product name", "expires": "2020-07-23", "payment_id": 54224, "customer_name": "John Doe", "customer_email": "john@[login to view URL]" } i need to show also this : "Order_date": "2019-07-23", "company_name": "company name" please check the Doc. [login to view URL] 2 -Now , In the cart When the buyer increase the Product(p1) Quantity to 5 , the Software Licensing plugin generate 5 license each of them valid one time (for 1 device). but what i need that the Software Licensing plugin generate only one (1) and its activating limit be (5). so the buyer will get only one licences valid 5 times (for 5 devices). 3 - i need custom price (or custom auto discount) based on the quantity. in the cart the first piece of the product have price of (X) and when increasing the quantity , the price for each other piece is (Y). ex:- - if the quantity of the product(P1) is 1 , the total price = 9$. - if the quantity of the product(P1) is 2 , the total price = 12$. ( the second = 1/3 the first = 3$) - if the quantity of the product(P1) is 3 , the total price = 15$. 4. Create a custom quote (with a custom quantity, and a custom expiration date). 5- Create a manual payment 6- allow admin to edit custom field (company name) from order page.