As an overseas buyer, I would welcome the feature suggested by Gary. Kits are expensive here in NZ, so most of my purchases are from ebay sellers. There are many vendors who charge ridiculous prices for international shipping, including one today who was charging $68 for a kit that only cost $25 or so . It costs as little as $15 to ship here, including Electronic USPS Delivery Confirmation International.
I have a few saved sellers who charge these low rates and they frequently get my business, as do Far East suppliers of Japanese kits that ship for about $12. Why is it so expensive from the US?
I would gladly exclude vendors with exorbitant shipping costs (say over $30). And I agree about the NASCAR decals, it ran to several pages recently!!