Not clear on above parts shown, but mine all goes with this piece where you screw the sparkers on so they are "above" the burner screen (but they are both "sideways" in the furnace)
I see mine has a way bigger hole in it for the fan. There is something different in the way the gas pipe bends around at the plate that screws on there where the burner goes on the other side in the other version too-mine is straight.
I have no slack in the inlet gas line from the propane tank, so the inlet on the part has to be just right there. If it were farther away a bit like the panther one might be (hard to tell) it would not work for me. If you have some slack, or room to run an extra piece of gas line over to it, that would be good.