I'm kicking around avionics upgrades for a Grumman AA5 and right now I'm bouncing back and forth between a full Garmin suite (G3x, GNX 375, G5, GFC 500) or the Dynon Skyview HDX suite with a G5 replacing the D10, a GPS 175 as the IFR navigator, and the GFC 500 (going this route because the Dynon...