Any good websites to find Guinea pigs for sale?

My sister and I are looking to get guinea pigs. We are still waiting for the answer from our parents if we can get them. We just want to make sure we have the Ginea pigs in advance if we can get them We cant get them from the pet store because we live in a small town and the nearest pet store is 87 miles away:(. We have tryed craigslist, NOTHING off that :(. Help please. We cant do petfinder because our parents wont let us. :( HELP!