A custom module for opencart

Hi all! I am looking for a good party who i willing tot work for me on the following lil opencart job. If u do the job for me I wil hire u for sure time after time. The job: - The customer should be able to insert a product without length limitation. For now it’s only possible to choose between 2 or 4 meters in width. - Also the amount charged to the customer should be automaticly calculated - Also we must be able to check how much meters a customer has ordered from the backend. If you are interested tell me the outcome of 2+2 = Let me know Regards Joshua