Multi-Vendor Marketplace with WooCommerce + WC Marketplace plugin

General information for the website: Multi-vendor marketplace
Kind of development: New website from scratch
Description of requirements/features: We would like to use WordPress, WooCommerce and the WC-Marketplace plug-in to build a vendor marketplace.

Basically, we're looking to build a marketplace along the lines of Grailed.com. We'd appreciate if you could go through the Grailed.com website (create a seller account etc) before speaking to us so you have a good idea of where we would like to go with this project.

Also in your bid, tell us what you think about WC Marketplace plug-in and if you think that you will be able to customize that plugin for our purposes.

Some of the things we feel we might need custom development on are features such as:

• Buyers should able to make offers on products. Vendors should also be able to make offers easily through a private messaging system.
• Currency settings for vendor items / Buyer views
• Vendors should be able to add individual tax rates for their products. We should be able to send out Tax receipts such as VAT for Europe.
• Plugin for a vendor to be able to import their products from eBay, Shopify, other WooCommerce stores etc.
• Vendor / Buyer communication. Simple messaging system to ask questions (private and public)
• When a visitor changes product filters, the results should automatically update in the view
• Payments need to go directly to vendors. Commissions for our platform should not be taken before the payment is made to the vendor, but it should be charged *after* as a second transaction.

Eg. A vendor sells an item for $100. They get the entire $100 payment sent to them automatically via PayPal. A second transaction is processed immediately afterward for our commission fee on the vendors PayPal account.

• Notification System for when an item is sold, a private message is received etc.
• Refund functionality: If a vendor refunds a purchase, the amount to the buyer is automatically sent back via PayPal/Stripe, and the commission fee is also refunded to the vendor automatically.

We may have features we want to add as well so if you folks could let us know what it would take to be able to keep your team on a monthly retainer, that would be great.

NOTE: We would like to keep track of development on Github for this project. Please send a link to your Github profile.

Please send us a quote for the project as well as a timeframe.

Extra services needed: Customization, 3rd party integration, Optimization
Specific technologies required: WordPress, WooCommerce, custom plugins, HTML, CSS, JavaScript, PHP, MySQL
Extra notes: