I apologize for what I'm certain is a redundant thread, but I can't find the answer using the search function.

My builder owes me a test kit and I cut a deal with him that he'd bring me one or more "top of the line" kits if I let him off the hook for replacing a little bit of sod he killed.

Which Taylor test kits, when combined, will allow me to do the same tests as Ben's PS234S?

(Ben, if you're reading this, I still want my PS234S when you catch up to my order! )