I have been trying to find the Caputo 00 pizza flour online for the longest time. The problem wasn't actually finding the flour but finding the flour with a REASONABLE SHIPPING cost. Well, I think I finally found it. Surfa's online sells Caputo 00 pizza flour in 5.5lb bags and for 2 bags I took the freight shipping for only 5.95! I will say the flour is on backorder for a couple of weeks but I thought this was a find worth sharing!
I am assuming you only wanted a small quantity of flour. I bought a full 50+ lb bag with shipping for $75 from Chefs Warehouse. Bagged it and put it in the garage freezer. It is amazing how fast it is being used up. If you have a pet, they are going to love the flour dust all over the place (LOL).
You might want to consider that or find another pizza nut in your area to split it with. The math works much better with the full bag if you don't let the shipping costs blindside you to the total cost per ounce/gram/pound.
Post what area you live in and maybe make a flour connection!
Good luck with it - makes a great pizza!