[SoCoNoHa]

Try to find some pedals from a 2000-2004 Legacy.
All you need to do is nip off a half-dollar sized nub from the backside of the clutch pedal arm to clear some wiring (literally 60 seconds with a grinder) and affix the top of the pedal bracket.
There's 4 studs coming through the firewall from the brake booster that hold the pedal bracket with nuts, 2 studs going through the firewall from the pedal bracket that hold the master cylinder with nuts, and 2 bolts that go up into the firewall under the dash. All the bolt holes line up except for the 2 uppermost holes.
I first tried to get away without them, but could feel a miniscule amount of play in the pedals. You could drill and tap em, but I didn't feel like squirting in there so i just sent a self tapper through it and it works like a charm.
Only thing is the Legacy hydraulic cylinder is a little tall; I have to remove mine from the firewall in order to open it.