I live in downtown Austin and have an extra trigger guard (w/ pin) left over from a MIAD Full Kit. I am too in the process of building.
If you want the trigger guard for your MIAD, it's got your name on it. Maybe trade for a beer? I'm a college student & can always use a beer.
My current build. POF 416 lower, Magpul MIAD, & Magpul UBR
By the way, the trigger guard that comes with the MIAD full kit is rock solid.