Thanks for all the replies. I didn't tell them up front about any rush charge, so I felt uncomfortable even bringing it up. I did let them know that I prefer two weeks for custom orders of this size. I was lucky that I had everything in stock, otherwise shipping would have tacked on the price too.
It was also the first order with this customer and like some have said, there may be more orders....I sold them for a fair price and it also let me know what I can really do in a rush situation. Thanks again,
-Dude