Most customers who email the credit card details divide up the information into two or three email for security reasons.
You can provide most of the number in one email, the rest of the number in a second email, and the expiration date and the security code in a third email. That is what I suggest.
Also, did you have a telephone number for the person receiving shipment in Oregon? Is there going to be a person we can designate as the c/o person receiving delivery in Oregon?