Howdy. Nice, but I have a comment. I believe the C and L3 constitute a series resonant circuit. I actually did some testing with a signal generator and an oscilloscopte. At 10,7 MHz. With a small value of C the voltage over L3 is in phase with the input. Increasing the capacitance closer to series resonance the phase over L3 begins to shift. The series resonance begins to load the input. 90 degrees happens about when the input goes down to about 70 %. Increasing further the series resonce will practically short the input. Regards.