Help with a price

I know this is dangerously close to belonging on the classified thread but here goes.

I have a 2003 QR TiPhoon in size 55 with ultegra 9 and velocity wheels. The stock Ultegra bike. Unfortunately it is a little long for me. (I bought the wrong size hoping it would fit due to wheel issues). I basically have never used the bike. I received ot at the end of the 2003 season and just prior to the last time I have run. I am now a couple mounths out from running again and thinking I should sell the bike to get one that fits.

The reason for this post is to ask y’all what I should sell the bike for? I have looked on ebay a little but really have no idea.

Any help would be appreciated.