I'm just looking for some opinions or first hand experience on the Lifan 125cc engine that's all over ebay with the 4 speed transmission. The Clone engine with some mild upgrades and a torque converter seems easier, but just the engine and torque converter will be 300.. When I Can get the Lifan 125 tranny included for 235 shipped. I'm looking to make a street cart that may hit an occasional clay road. My only set goal is to do 50+ mph.