Congrats on the new wagon!
A few cosmetic changes I made to my poverty spec 17 GSW S:
Osriam LED Xenon replacements with partial retrofit for autoleveling. The normal halogen replacement Osrams are just as good, but I originally was going to retrofit OEM Xenons, but the Osrams were cheaper per light - So went with them to get some OEM functionality.
Euro 7.5 LED tail with single amber turn and separate brake light. Built a harness and coded drivers reverse to drivers fog and t-tapped passenger reverse to drivers reverse on the light itself.
Weathertech rain guards front and rear - Some don't like the look, I dig it. Plus they're great with the dogs.
Weathertech interior water proof mats front and rear.
Sound deadening in the hatch/rear seat area. Going to finish doors soon.
Aero rear window side spoilers.
Helix OEM Subwoofer upgrade.
Auto headlight switch with front and rear fog, complete with Chinese light detector - Not as good as an OEM retrofit, but for 30ish bucks for the sensor, it's a whole lot cheaper.
Ali-express metal pedal covers - For 20 bucks they look almost the same as the more expensive ones floating around. My dead pedal just had a slight dent in it, but the weathertech matt comes up far enough to cover it. Hah
Ali -express black out kit for the front and rear - Waiting to install this as i've been lazy and distracted with my Dashcam.