Success.
Finally convinced the LA7161 chip to modulate onto channel 13. Seems VCRs in Taiwan use channel 13 for their outputs, same channel 13 in the USA. What I did was to parallel with the adjustable coil that was used originally for channel 3 or 4, and I had moved to cable channel 95 (same as Japan's channel 1) by reducing the capacitance (I series-ed a pair of 10pF or so SMT caps), and wired the control pin (as mentioned in my previous post) to make the chip do Japan channel 1. Okay, according to the data sheet, this same control voltage along with a new 270K resistor from the crystal osc pin to Vcc will tell the chip to do channel 13. But you have to get the LC circuit to be resonant at channel 13 (around 210MHz). So paralleling the above adjustable coil with another smaller coil should do it. I pulled a few likely looking candidate coils out of a dead VCR tuner/IF module and futzed around. Using a test lead point (made of brass, which makes inductors lower, inverse of ferrite rods) I got channel 13 or appear momentarily. Which meant I was halfway home (anyone who ever messed with VHF LC circuits will know what I mean). So reducing the number of turns, spreading or squeezing the coil to get it on resonance eventually happened. And I used the old adjustable coil to fine tune it in. The shield cover posed a problem, as the new coil was on the back of the board, nearly touching the shield. So I just cut a hole in the shield to avoid detuning the coil. Oh, there would be a slight amount of leakage, but not enough to worry about.