I curently ride a 2002 mxz 700 adranaline salt lake city with an mbrp race silncer and a 144 studs on the 1" track. I mainly ride trails and short drag races around 600-800ft. Im normally always finishing first with my 700 but would like to get on the rev chassis. The dealer has a 2003 mxz440 lc for $4000. Im not sure what i can get for my sled on a trade but im confident atleast $3000-$3500 as mine is mint with only 800 miles on it. The 440 is trail set up with 2000miles on it. Give me some reason why or why not i should or shouldnt make this trade.