Kevin, I haven't time tonight to try to lay new track, but thought I'd post the benchwork space (in black) that will be available given the latest room dimensions and your desire to maintain the 24" access around it. As you can see, the track as designed will simply not fit, especially the dual main loop on the left side. And while I like the design your friend is going to use with the access aisle, the 5 doors/doorways in your room limit placement of the benchwork along the walls, except for the upper right. I assume he doesn't have to deal with 5 doors and that his will be an around-the-room layout with the access aisle from the entry door.
The dual main loop on the left shows why the room and benchwork dimensions are so important. And I don't remember if you said or not, but I've got all the doors opening "out" of the room "away" from the layout. The 2nd image shows what aisle benchwork might look like with 30" reach around some of the walls. The doors would come in handy for access. 
