A quick question, you want to go high pressure or low pressure propane, or NG. A couple things are universal, the Y8610 ignition module and the Q345 pilot burner.
If you want to go the high pressure LP route then 2 Ea 1/4" normally closed solenoid valves rated for fuel gas are needed, one for pilot burner, other for main fuel. Contrary to popular myth a 1/4" solenoid valve with 10 PSI LP is more than enough, I use one on a burner with a 1/16" orifice with a higher output than a Banjo burner.
For the low pressure LP and NG then the Honeywell 8304 furnace valve is hard to beat for simplicity and cost. With appropriate jets you can get satisfactory performance with a 10" Banjo burner.