Need senders for the performance gauge pack

Hey all,

I have this installed in my car, but I am missing the adapter plate plus the oil temp and pressure sender.

Someone told me that the DEFI senders will work, but for the price they want for them I should just get the whole gauge and not just the sender.

Does anyone know of any other senders that will work for the setup? The adapter plate is the easy part, its the senders that seem to be elusive