I'd estiamte that without stripping all off the interior carpet and sound deading here's my best off the top of my head estimate for weights:

1) 1/2 tank fo fuel - 8 gallons - 80lbs
2) rear seats - 200lbs
3) spare tire, jack, carpet - 60lbs
4) A/C components - condensor, evaporator, compressor - 150lbs
5) lightweight wheels - 20lbs
6) OPTIONAL - removeable sound deadening material and upholstry - 100lbs
7) radio, power acessories and associated wiring harneses - 50lbs

I'd estimate a stripped down Accord starting at 3000lbs... could get down to maybe 2350.... but it will be loud, and the weight distribution will be even worse...all front weight. You'll probably need softer rear springs to compensate or have a car that oversteers terribly under braking, when entering a corner, or lifting the throttle mid-corner.