I bought my tank from these guys at Discount Radiators. A new tank for your application is currently going for $145.00. Which doesn't include the pump bracket which retails for about $120 from Toyota dealers. I think the online division of Bob Bridge Toyota, also know as 1sttoyotaparts.com sells the bracket for about $89.00 plus shipping.

I've had good luck at my local Toyota dealer by quoting them the online prices from competitors like 1sttoyotaparts.com and asking them if they could give me a better price. They were quick to meet me halfway, which gave them the edge when shipping costs were factored in. It never hurts to ask (politely). -- Matt