Migrate Lovable Store to Square

I need help moving my entire Lovable online store from its current platform to Square. The store holds about 2,092 products with1,160 of the total items already sync live with eBay. Each item carries multiple photos and, in many cases, a short video. All images sit safely in Cloudflare, and the site is running smoothly right now, so downtime must be kept to an absolute minimum. Here is the flow I’m aiming for: • Products, photos, videos, and the existing eBay link have to be the first assets live on Square. • Square will become the single source of truth for inventory; every stock change on Square should automatically update eBay. Only change eBay should make is to decrease count to square when an item sells. • The full customer email list and newsletter need to move over as well, then continue to send from within Square’s marketing tools. * A list of live train events need to move and allow vendors to purchase vendor tables for each event. A separate page needs moved to track vendor tables sales along with an approval vendor form. *Sell your collection page can be duplicated to square. *"Contact us" will need to be placed on each page. *A page on lovable contains, Profile Purchases Addresses Payment Methods Wanted List Gift Registry Gift Cards Membership This same type of page needs to exist on square. If Square’s native email limits become an issue, I’m open to your suggestions for retaining the same newsletter frequency without losing deliverability, but my preference is to keep everything under one roof. This is a 1 price bid. We will NOT pay more money that quoted. We will pay ONLY when the job is completed to the necessary information stated above. Please outline your approach for data export/import, how you will maintain URL integrity (for SEO), and the approximate timeline you’ll need to complete each milestone.