Here's my interpretation for the lower level. There is a red smudge on the two switches you recently added so ignore that. The isolation is between those two switches where they connect the two yard tracks, and the upper switch is part of the block from the curve on the left to switch all the way to the right. The yard wiring I suggest will work but may not be what you want for operating.
Hi Dan, thank you very much! I have more drops then what you so already on my layout I am changing to the new one. So that is not going to be a problem for me. I had more interest where to put the block isolations. As far as I can tell it looks like it will work very well!