Using Classifieds Plugin to build an Exchange Marketplace

Hello,

I would like to build an Exchange Marketplace where users can submit in 2 sections: "Offers/Sell" and "Needs/Buy".

I'm having the below challenges getting this to work based on the Classifieds plugin:

1. How do I change the slug of the classifieds from "classifieds" to marketplace, while maintaining functionality. Does changing the slug of the main page to marketplace change the core/root slug for all pages and posted associated with the plugin?

2. The pages created by the Classifieds plugins are:

classifieds
my-classifieds
checkout

Where can I get the front-end submission form?

3. How do I split the view and submission for 2 sections for buying and selling? Any thoughts or examples on similar marketplace concept built with the same plugin is highly appreciated.

Thanks a lot

- Abdel