Unless someone has run a tiny trainer through a wind tunnel with an instrumented balance, I doubt that you are going to be able to find that data. Good luck with the project though! One alternative to derive the curve through flight testing. You would have to have an AOA sensor and an airspeed sensor, with some type of onboard data recording. Then, fly at a constant altitude, slowing until stall occurs. Then you can use the data to correlate a lift curve. The components to do this are rather expensive though, but definitely costs less than the alternative! Sorry, wish I could be more help, but it is difficult data to get..