The interline discount should be about 75%. The skis will be more than $10. The rates are based on weight and size. It also depends on how far it is shipped. You can also ship 2 day or ground to save money.
Just show up to a FedEx staffed location, and present your airline ID. You will have to put your employee # and date of hire on the air bill. Kinko's should work, but if you can find a FedEx shipping center, it may be easier.
Good luck!!
