Drop Shipping

I have a WordPress website setup.
I have multiple vendors from different locations – I need a basic plugin that will allow me to ship from different vendors to my clients.
So – Let me be clear.
I have many different vendors who are all in different locations.
I need to be able to figure shipping cost from all my vendors independently to whatever location from where my customer has ordered one or more products from different vendors.

Thanks!

The page I need help with: [log in to see the link]