CS-CART Work to Transfer email ids to subscribers list

Please go through the below work carefully and quote me the best price. Need an experienced person for this work. I am using CS-CART V 4.3.7 1. I want you to add the email id's of all currently registered customers to the subscribers list. 2. Henceforth automatically add the email to subscriber list when a new customer register's on the website. 3. Transfer all the Subscribers and Email id of Registered customers from a webstore which is on cs-cart ver 3.x.x to my current store subscriber list which is on cs-cart v4.3.7.