I thought about using "dual 2 input nor gates" for the flip-flop circuit, because of space and maybe I could add a battery monitoring circuit to it then. But those aren't as cheap as 4001 chips.

D'oh!

I think I messed up two things:

1. the signals are not right - the NOR gate outputs should be the other way around
2. I have no transistor on the ESP to change the state of the flip flop

I guess I have to wait on the parts and test... meh. Wasted day