hi im thinking of sellin my rex....how much you think its worth?

aspen white wrx sedan
9200 miles has the factory wing. car i very clean and well taken care of..change the oil every 2500 miles with mobile 1.

mods: apexi N-1 catback, helix dp, godspeed up, tein springs, rep. sti fog covers, diy headlights, zerosports tube, cf autometer gauges in gauge pod (egt,boost), dyno engineering gaskets, viper alarm w/ autostart, ilp ss w/ momo shift ****, kenwood in-dash touch screen dvd/cd/tuner, 12in polk audio sub in ported box, sony 800w mono block amp, bazooka rear speakers, dynomated trunk, gorilla lug nuts, debaged trunk, blitz bov

stuff i might include if not sold seprately: replica zerosports sides painted, kaminari rear painted, replica zerosports grill painted, replica wing risers painted, greddy fmic w/ hks bov and greddy intake. and some stock parts as well..

well thats is i think i might be forgeting something.....just want to know what my car is worth if i wanted to sell her....thanks!