All of the components in the kit will work together. The picture looks like the chain tentioner guides are aluminum, but not stated and could be plastic when received.
In my opinion, just order new chain tentioner guides and save yourself a pile of money. The guides are the only component that wears out to damaged. None of the other listed components wear out. Also Id prefer to run a worn timing chain over a new chain. The worn chain has stretched its stretch from wear and really wont strech much more. All the new chain will do is stretch