aem failsafe boost solenoid setup

Hi guys, I'm trying to make a circuit which has two functions: 1. Use a standard dash button which provides a momentary ground pulse for both on/off to switch my boost solenoid on/off 2. As a failsafe if my aem failsafe gauge reaches dangerous afr levels it provides a low side ground output which I want to use to turn off the boost solenoid. In turn it will bypass the boost controller and revert to wastegate pressure. This is what I have come up with so far: Problem 1: The momentary on/off only turns it on... Problem 2: the on/off button activates the led and warning buzzer when pressed. I'm using 40 amp relays, an overkill I know but they came with wiring harnesses and diodes which make things a little easier to wire up. Any ideas much appreciated :-)

I made have found a solution: Will this work?

Why didn't they merge your threads? Omron or Panasonic latching relays, about £6 each, RS Components.