Anyway here are the pics I promised.  The chair is a bit dirty from being used  for three years; hint do not paint it white.  I learned that lesson already.   For the size I just measured my daughter and added a little.  I made her back a little angled but have made more with a straight back.  There was also a push stick that I had on there when she was little and just learning, it is off now.

 

The most expensive parts were the wheels.  three casters and two 10inch bearing wheeels cost me a;most 75 dollars. but the wood was cheap and labor well very cheap.

Please write back if you have any comments or questions I will be happpy to help.  THis chair has really enabled Mary to do what she wants at a kid level.