i think its overpriced by at least 500..
i agree, cars are never worth anywhere near what you put into them.
best offer i got for mine was £500.00 and i had spend double that on it in the previous year.
therefore i have kept it.
my advice would be put it back to standard, sell the modded bits for whatever you can get and sell the car as standard. its more of a pita but will get you more dollar.
if they are in good nick then...
wheels & tyres £2-300
vento front £100
coilies £50-70
car £600/700