To save yourself a lot of trouble, it would be easier to estimate shipping using your zip code and one that is very far from you. Like I live in SC, so I use a California zip to estimate my shipping costs. It usually is only a little different, so if you charge a few cents over the actual cost, it's not going to matter. It's just that if you say send me your zip, you will be looking up costs every 5 mins until the auction is over.