I’m building an online marketplace where enthusiasts can buy and sell pre-owned LEGO sets with confidence. The storefront will run on WooCommerce, but it needs several custom touches: shoppers must be able to locate a set instantly by entering its official set number or set name, filter results by condition grades, and feel secure thanks to a clearly displayed 100 % piece-completion guarantee. On the selling side I want an “instant quote” experience that begins with a simple form: the seller enters the set number, selects the condition grade, uploads photos, and sees a provisional price. For launch, these quotes will route to the admin area for manual validation and approval; the code and data structure, however, should be cleanly organised so an automatic pricing algorithm can be plugged in later without rewriting the front end. Because LEGO fans often search for specific minifigures, sticker sheets, or total piece count, product attributes and taxonomies have to be stored in a way that future filters can be added painlessly. Good use of Advanced Custom Fields (or comparable meta plugins), tidy templates, and lightweight JavaScript for real-time feedback will make that possible. Deliverables • A WooCommerce theme/Lego theme with custom product fields (set number, condition, piece guarantee) • Seller submission wizard that ends in an admin-side review queue and sends status emails automatically • Buyer search bar plus faceted filters for at least set number and condition, ready to expand later • Clear documentation outlining where to hook in an automated pricing function The site should look clean, load fast, and be easy for non-technical staff to maintain. If you’ve built niche WooCommerce marketplaces before, especially ones that rely on custom product data, I’d love to see what you can do here.