Maybe I'm missing something, but if I click on George's link to the PZero System at Tirerack, then the sizes tab and specifc size it brings up the specific tire page, price and stock.
They show the 225/50-16 in stock in the Nevada warehouse for $153.45 ea. The 335/35-17 are due in to NV March 3rd.
Tire Rack will also let you search inventory for pickup at any of their warehouses and if you call will typically transfer between warehouses free of charge. This may not be a concern if you are having them shipped to you.
All that said I have found that the local tire installers can meet the online Tire Rack prices (and get their stock from them) plus the usual cost of mounting and balancing, so it's just as easy to call one of them and let them do the leg work!
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