If you want to get something with more quantities for the FC tests you do most frequently, then you can either mix and match by buying the Taylor K-2006 and supplementing with extra DPD powder (R-0870) and FAS-DPD titrating drops (R-0871) or you can get something like the TF-100 here that has more of the reagents you use the most often (it's sort of like Ben's test kit he used to sell) including the CYA test reagent. A comparison of these test kits is in this post.