You can ask what ever you want for your car. But dont confuse asking price with what they actualy sell for. I bought mine for $2k. And I would say it is in pretty good condition with 92k miles.
I have sold several DSM`s and you will with out a doubt get more for it on the autotrader than car boards. You may want to try posting it on the galant board though. Not sure how many people are actualy searching the autotrader for a GVR4.