I checked my stock and I only have (15) 1/0, 2/0 and 3/0. I found the best place to buy them is at Lure Parts On Line, or you can try Shorty's. I know they sell 100 packs of hooks as well.
When you pour with the divided cup, hold it about 6" above the mold and let the tiniest stream flow out (smaller than a toothpick if you can). That will let the colors mix better.