You may want to check out this thread, http://www.pizzamaking.com/forum/index.php/topic,2629.0.html
, especially relative to Jimmy's in Dallas. You will not find KASL or any other high-gluten flour for that matter at the retail level in the Dallas area. A few years ago, in 2005, I was able to open an account with Dawn Food Products just outside Dallas in Garland, that allowed me to buy a 50-lb. bag of KASL. It took me quite a while to work through that bag, and I had to fight some insect infestation along the way, so I decided not to get another bag. I found that a good substitute for the KASL in recipes calling for high-gluten flour is to use the King Arthur bread flour, which is sold in quite a few markets in the Dallas area. In case you are interested, the details on Dawn are available at Reply 7 at http://www.pizzamaking.com/forum/index.php/topic,1907.msg15853/topicseen.html#msg15853
Good mozzarella cheese is hard to find in the Dallas area, although you will be able to find some very good brands at Jimmy's, including imported buffalo mozzarella. Central Market and possibly Whole Foods (they keep changing their inventory) also carry fresh mozzarella cheese. Most supermarkets also carry fresh mozzarella, like BelGioso and Mozzarella Fresca, for example. Getting whole milk mozzarella cheese is especially hard to get in the Dallas area. Wal-Mart sells their house brand but I do not particularly like it. Jimmy's sometimes has whole milk mozzarella. Whenever I go to Jimmy's, I alway cross examine the workers behind the counter on which mozzarella cheeses they then have in inventory. They also carry very good Provolone cheese and grating cheeses like Parmigiano-Reggiano and imported Romano, usually at good prices. Jimmy's in the past has carried Stanislaus and Escalon (6-in-1s) in large and small cans, at good prices, but local restaurants are likely to deplete their inventory quite quickly. So, you never know whether they will have the tomatoes in stock when you go there.