Looks like you and I are following kinda the same route.
I have the RA mud flaps with the silver logo (self-install, kind of a PITA), and the Perrin CBE (3.5" slant tips) is perfect for me. Really completes the car to hear that low rumble in idle and deep growling when I take off. I'm thinking about debadging the rear, getting a nicer shift knob, adding those vinyl WRX inserts (I have some in black, but think I want to go blue now), a front grill accent (also blue) and that's about it until the warranty is up.
Anyways, congrats, looks nice!