Spend a little more time on the car. I had my late car under 2,300 dry with a full Hanksville care, with a few extra bars, and no undercoating removal
1. Replace the sunroof with an aluminum panel - saves 15 lbs
2. There is almost 35 lbs of wiring in the car, you save 25+ lbs there.
3. If you have an oval dash car, make a simple aluminum enclosure - 15-20 lbs there.
4. Remove the the rubber bumper extensions - 15+ lbs there.
5. If you get desperate, go after the undercoating.
If your under 300 lb, you can get to weight, but you may have to work at it a bit.