Getting your comp weight down to 2800 isn't very hard. That's about where I was last year (my comp weight was 2885 and I was running 70lbs. of ballast and I weight in at around 210-215lbs with all my race gear on, leaving my car around 2600lbs with about 1/2 tank of gas).
I was able to get my car (not including me) down to around 2600lbs while leaving the interior completely stock. My lightweight mods include:
Removing trunk junk - about 40lbs.
Lighter wheels (Enkei RPF-1) - about 16lbs
Essex Sprint BBK - about 20lbs.
Driveshaft Shop Carbon Fiber DS - around 13lbs.
ACT Pro-lite Clutch and flywheel - around 12 lbs.
Shorai 5lbs. battery - around 20lbs.
So that's about 120lbs right there from the car and you can get another 20 pretty easily by moving to a lighter cat back from the stock one.
When you want to remove even more than that, take a look at @
Anthony build thread:
http://www.ft86club.com/forums/showthread.php?t=42284