Hey Angel,
My name is Max and I have a source at a publishing company that'll resend the books along with a invoice at no charge but postage to you. This is a company that deals with sending books to institutions all the time and knows the ropes. They are small and don't have a website but, if you want a reference ask Gumby. She has dealt with them before. Their goal is more to get books into prison than to make money so they try to only break even on their business. Their address and phone number is :

Silverhammer Publishing Co.
2618 Battleground Ave. Ste. 301
Greensboro, NC 27408

Phone # 336 - 314 - 7842

Good luck !