[AzDon]

Okay, I did some work this week on the tailgate latches.....when you push the button, the movement is converted to rotary movement of a bellcrank that pulls the two side release bars toward the center for lower gate release. What this means is that you could essentially hang a GM door lock solenoid horizontally by a trapezoid hinge that allows it to "float" (side-to-side) and have the two ends pull on tne right and left door bars.
The upper latch release can't be electrified nearly as easy...... Even though I've devised a way to fix my upper right hinge instead of creating inboard hinges, I'm still thinking that I want to use an electric screwjack to raise the hatch and lower it and hold it shut in lieu of a latch.
Simplicity kinda makes an inside mechanical release a better idea for the lower hatch since the upper would always be open first anyway.