looks like a good start kingdomracer. 3200 grams is just over 7lbs. my carbon fiber losi 8ight 2.0 brushless came in at 7.5lb (approx 3900grams) and i had lots of aluminum parts too for strength in certain areas and mechanical brakes. you will have no problem hitting that 3200 mark i dont think. you can see what i did and maybe get ideas of where you could shave a tiny bit of weight.
http://www.rc-monster.com/forum/showthread.php?t=21170