I will try to make a long story short. Have an 08 xp x package that needs a top end that we are trying to decide on parting out or fixing for a backup sled. I see lots of parts for sale to give me an idea what they might be worth but there are a few things that I rarely see for sale that are super expensive to buy new. The ECU, instrument cluster and tether are all synchronized together so I thought they should go together but even half of retail seems like a lot. Also the chassis with tunnel and heat exchanger, engine module, shock module, A arms, shocks, steering, front bumper, and the pyramid braces should probably all go together too. It would make it easy for someone who tagged a boulder and bent everything on theirs like a pretzel. The prices of all those together retail is more than you can buy a good running 08 XP for. So how do you determine a fair price on stuff you never see for sale to compare? I guess there is the old saying " start high because you can always come down" lol.