Okay, there's no "B" version of the DB8.
I'd use a ClearStream 5, but then I have two of them in my garage...
I'd also use the PA18, since I have those on hand.
You shouldn't need an FM trap, there are no FM stations strong enough to cause you problems out there.
This is the circuit for the basic setup:
https://www.antennasdirect.com/cmss_...e_Antennas.pdf