Hi Alena
I weigh a little bit more than you (62 kg). Two years ago I bought upon Roger's advice a second hand Free Formula 138 Wood 2004. Paired with a 9.0m² Sailworks Retro, I can plane from 7 knots on with a far from perfect technique. I spent 800 euro at the time.
I am still very pleased with it!
Have fun!
Karen
