Not sure I understand

I'm not sure what you're trying to do, or what you are asking.

Why are you using two reverse units?  I see only one reverse section.

Are you saying that each physical piece of track (turnouts, flex track, etc.) is a separate block, fed from its own circuit breaker?  That seems a bit excessive.

I don't see the problem.  I would simply cut the track (or bus feeding the sections, if you like) in three places.  One would be to the right of the upper left switch, and the other two would be the ends of the two tracks in the lower left corner, as close to the yard as possible.  Feed both of the parallel tracks in the resulting block from the reverse unit, and everything else form the main bus.  If you want, you could use the circuit breaker on the yard.

When I talk about each track

When I talk about each track being its own block, I mean it in the DC sense.  In DC you might have several pieces of flextrack joined, then isolated forming an electrical block, but using common bus wiring; that's how I use the term here.