Hello Dave,
I really like the "loop" at the top in the center joining the two lines and all the new open space. If I am seeing this correctly, this new layout also shortens the distance to reverse that direction of the train.
I copied the previous layout and the new layout, one on top of the other into a file and printed it out to compare, and to me it is incredible the change.
Today I will work on redesigning the "top" with 3 options for modifying the angles in the insert (bottom) area. 1) I can simply move the 45-degree angles inward or, 2) change the 45's to a greater angle, 3) a combination of both. Just looking at your layout, I believe changing the angle would be the best way to go. The Casters are due in today and I then can confirm the bolt pattern and I can complete all the drawings for the framework.
Received my first train and two big boxes of tracks in yesterday so I need to get busy and turn these designs into some sort of an actual layout. Once again I want to thank you for all the time you have spent working on this layout.