I will sell you my mayhem that already is set up for a simular track, and already has several hop ups and comes with several spare parts for 300.00. Look back through some of my post to see pics or you can just go to www.picturetrail.com/kruck. U get everything in the pictures with mine includeing the 70.00 pipe! It also comes with two more sets of tires and wheels and the factory body. But if you want a diff one there are some things you need to do before racing. It needs all the diff fluids checked or changed. Go over every nut and bolt to make sure they are tight, and depending on your track you might need diff tires. With jumps as small as yours the factory suspension might be fine. I would play with the caster and toe out to try and get it to handle like you want.