custom plugin development for an online booking platform

We are looking to implement certain set of tasks and changes in your existing WordPress based website, along with resolving certain issues. The set of tasks to be implemented includes: 1. Using a better ajax based login popup plugin. (Using the free plugin “Login with Ajax” since it was preconfigured to run on the theme of our website, and deactivate the “Profile Builder” plugin and all its add ons) 2. Auto login user on the website after they sign up using the normal registration process via their email (the redirection should take him to the page he was in before, and as a side note, we’re using CloudFlare for caching) 3. Activating and showing the mobile number fields on registration and user profile page, which currently already exists within the WP SMS pro plugin being used. (Once you deactivate Profile Builder and use “Login with Ajax” the phone field will show on registration, reroute some variables to use the WP SMS Pro phone field instead of the Custom field from Profile Builder) 4. Update the mobile number automatically in profile, if users enters one on checkout page. (And if one is already present in profile, it needs to show on the checkout field) 5. On any listing’s details page (and only listing’s details page) , when user leaves a comment, they will earn certain points (to be tied with existing sumo reward point system). (The comments on our platform are approved after moderation, so the points would be attributed after accepting or approving the comment) 6. When signing up with Facebook, the First name and Last name taken from Facebook go to The Billing First Name and Last name of Woocommerce. They need to also go to Wordpress First name and Last Name. 7. Make the Username not required and not show up in registration. (Ideally the email value can be the username value so the user doesn’t have to enter it) 8. We need some data that is fetched through queries on the checkout page (shown as hidden input in source code) to be resilient to page refreshes.