Randy, frankly color visions is not that important for a pilot, often light gun signals are given as one thing needed, but not many of us have ever had to really use light gun signals with loss of all coms and a plane still flys just fine with or without coms. Normal vision is important. I think sport pilot would be fine for you, quicker and cheaper than private, you mainly miss night flying, instrument flying and perhaps some cross country instruction. I havent flown an Evektor but have flown a Gobosh which is similar and a neat little plane.