You appear to be randomly moving components, without any thought for what they might do?.
I don't see how it can possibly work as you've drawn it?, nor do I see how moving the base bias resistor can be expected to 'increase stability and gain'. The two are mutually exclusive, a super regen works by being unstable (just oscillating), with a signal being enough to stop the oscillation, thus giving the maximum possible gain. Connecting the resistor to the collector will give negative feedback, preventing it oscillating.
Depending where you are thinking of placing L2 (from the first diagram, not the second!) it should form a low impedance load for audio, and a high impedance load for RF, passing the audio through it, and rejecting the RF.
But I would suggest you go back to the original circuit (before you started altering things), I doubt random changes will improve performance?.
You should also be aware that a super regen, particularly if not designed and built correctly, can cause interference to other users, and could render you liable to prosecution?. You might have noticed, the circuit is almost identical to an FM bug?.