Just go on the website and check. The search and filters are very user friendly.
As Kat mentioned, RE001 isnt available in the states. Delivery is around 270USD for all 4 of mine. Be mindful when ordering, make sure your purchase is less than 1000AUD or else you will get hit by import duty. If it is over, try to find someone to share shipping with you (splitting the exp and cheap tires up). Thats what I did. My mate ordered 4 Yokohama S-Drive which are like 600USD and mine are 1200USD. We split them into 2x PS2 2x S-Drive per delivery to make the purchase less than 1000AUD.
For 500AUD/tyre, you will get a much better tyre there. I sort of filtered my options down to Bridgestone RE11, Continental CSC3, Yokohama ADVAN AD08 and Michelin PS2.
PS: They have Yokohama ADVAN AD08 too.