Just a quick update, I've got the suspension tuned in and everything installed. Went to the track on Easter Sunday, and by the end of my 3rd session I was 3 seconds faster than my previous personal best lap time, so I am very happy with the car and my own progression as a driver. I'll be at the track again this weekend, weather permitting.
Car has significantly changed in how it feels on track, so I had to completely relearn the rhythm, but once I got it there I must say the car feels very good. I have JDM STI motor mounts, JDM STI transmission mount, solid driveshaft center bearing bushings, and have done every single bushing in the suspension with Whiteline replacement hard poly bushings. Rear LCAs and rear toe arms were replaced with the SPL parts arms, and I now have the RCE Tarmac 2s installed, everything is dialed in. My alignment was basically perfect for the tires and track, confirmed by the pyrometer.
Current alignment:
Camber: -3.2F/-2.2R
Caster: +8 degrees
Toe: 0F / 1/16th inch R
Cold Tire Pressure for track: 31 psi