I would like to create a custom shipping rate page that an administrator could use to put in a zip code and get the FedEx rates based on the total weight of the shopping cart. This would be used for phone orders as our client doesn't want to have to put in customer information into multiple applications.
Is there any exposed functionality in the shopping cart which would allow us to do something like this or would we need to buy the source to do this or even write it all from scratch?