I have a 2008 Chevy HHR SS & I am wanting to trade it in on a Ford F250. I am looking for a 2004-2008 F250 with a manual trans & 4WD in either a crew cab with long bed or just a ext. cab. with a regular bed for under 20Kbecause of the difference of what I owe on the car. I am needing help finding one. Also how hard would it be to take a 4X2 an change it over to a 4X4 if I can not find a 4X4 an have to settle for a 4X2. Can somebody help me?