So the actual layout is somewhat revised based on the setback restrictions for Dallas.
Originally I was plannig for the width to go from 10' to 16' over the 10' depth of the pergola, but with the setback factored in the pergola will have to start much narrower and widen considerably more.
The only good news is that it completely takes the tree out of the picture, so I don't have to build around it.
The front span will be approximately 22' and the rear about 3'6". The right side 15' and the left side 15'6". The pergola depth will be 12'.
Doing things almost the right way...