Migrate E-Commerce Site to Square

I need help moving my entire Lovable online store from its current platform to Square. The store holds about 1,700 products—1,200 of them already sync live with eBay, each item carrying multiple photos and, in many cases, short videos... (Budget: $250 - $750 USD, Jobs: Cloudflare, eBay, eCommerce, Email Marketing, HTML, Inventory Management, SEO, Website Design)