I just thought I'd post to thank everyone (and especially Big Sky) for all the awesome information in this forum. Using the search button I actually found out everything I needed to make my first "tune up" of the suspension and brakes, and information on the installations as well. I can't imagine what it would take to put this together on my own.
Here are the parts I will start with (for 2003 wagon): Toyo Proxes 4, SS brake lines, speed bleeders, ATE super blue brake fluid, 20mm rear sway bar, 2004 STI sway bar mounts & hardware, and steering rack bushings.
Oakos, Edge Racing, and All Subaru were all expedient and delivered as promised.
My wagon was built july 2003 so I have to measure the brake pads before I order, as per the sticky. I think I missed the Ferodo 2500 fitment cutoff by 1 month. I wonder if you can differentiate between the two possible front calipers by the bleeder size? I'll have to look into that later.
I'm having the tires mounted and custom alignment tomorrow (max front camber ~-1.0-1.5, zero toe all around, and minimize the cross camber and toe).
I'll update once I get this stuff on. I think I'm going to like this!