I was thinking of using WORDpress as the CMS or dolphin. but i am good with whatever you may think is best.
Website Summary
Sellers to add items under specific categories on the website. Buyers to be able to purchase items directly from sellers for 5p via paypal. once transaction is done, seller needs to be able to update the transaction with a tracking number for buyer to be able to access.
Graphics
Website and logo custom design
Ad zones, categories pages, social media zones
Content Management System
Admin
add/edit/delete user accounts
add/edit/delete static pages
edit SEO content such as titles, descriptions, meta tags
add/edit/delete items for sale
add/edit/delete ADs linked to Ad zones
Users
Buyers
purchase items/services from sellers
edit their profile
send sellers payments via paypal (need to talk about this process)
view list of activity
Sellers
edit their profile
add items/services for sale under categories
update sold items with shipping tracking number
send messages to buyers of items
view list of activity
Misc.
google analytics setup
email newsletter module
invoicing emails when purchased items complete
seller/buyer reviews