Write a calculator for an online store on Bitrix

Day, colleagues. The services of a web programmer are required. You need to write a calculator without connections on api with third-party services of insurance companies. Those tasks on the site and its functionality in the attachment, the site is made on Bitrix. Calculator formulas are in the attachment. These are two new insurance companies: I need a price from you for writing a calculator, integrating it with the site in accordance with the TK in terms of functionality (except for interaction with third-party services (fear companies by API) and the deadlines for work. TK is given for analysis of the functionality of the site and only, the basic requirements in correspondence.