Customize WordPress multi-vendor marketplace website

We are looking to customize WordPress install (WooCommerce+ VC Vendors+ Woo Product Enquiry Form+ built PayPal payment extension) for Multi-vendor Marketplace. Marketplace will sell different web design products (Logos, templates, fonts etc.) by vendors. Vendors will have option to add customization fee for their products. We’d prefer to use only WooCommerce products (plugins, extensions) to setup multi-vendor marketplace. WordPress AVADA theme is our preference. P.S. You will need to upload with some Demo content (vendors, products) for testing purposes and demonstrate how smoothly everything work. Add ONLY best examples when bid! NO web design work necessary in this part!