Why not just make your own blend? Locally there have been fantastic sales on cheeses lately, Shop-Rite has been featuring a different mozzarella every week for under $2 a pound, and their cheddar was 99 cents for an 8 oz. stick. It's not rocket science, just approxiamate an appropriate blend and shred it up and mix it together. Freshly grated cheese is much better then the pre-shredded you buy in packages, it has no added ingredients to combat clumping. One of my favorite pizza making tools is a Presto salad shotter which is my pizza cheese grater. No need to buy in bulk, or beg, borrow or steal to get into a members only business. Mozzarella, cheddar, mild provolone, fontina/fontinelli and kasseri are staples in my cheese drawer for pizza duty.