How can we attache Multiple Price Lists for a particular Customer?(Urgent)

 Hello All,

I am faced with a client requirement where in I need to connect multiple price lists against a particular Customer.

Currently one price list could be attached at Customers's ship to location which will default on Sales Order when Customer's name is selected.

Is there any seeded way in which only a Customer's Price Lists will appear in Price List LOV on Sales Order Header.

This is really urgent. 

Looking forward for inputs.

Thank you.

Ritu