Seems a bit high to me just because of their sizes and that they are both wild type. Since shipping is included you're really only asking around 350 for them, give or take a few for the location. I've seen similar sized females for about $100-150 at a pet store that usually has better prices than others. Males typically don't sell for as much though.

Also, it would be good to know their origin, if you have feeding records, etc. on them. Being able to provide this info will help you in your sale. Sometimes price is not the most important piece of a sale.