SideTrack Hobo;Ok, I'm hesitant to say that the layout plan is Done! But...it's pretty darn close!
I increased the length of the passing siding on the left side up to the apex. I was not able to put in a right hand curved turnout on the apex because the curved turnout diverging track only curves to the inside. Not the out side, where it would have needed to connect to the passing siding. The siding would have to be on the inside of the mainline (to the right) for it to have worked out. Not a big deal though, because the objective was still accomplished.
And by the way @JeffHurl.
There has been a major correction done to an un-noticed portion of the layout I'm sure that you will notice it though
View attachment 597396
Can't you keep the passing siding on the outside by using the other ("diverging", smaller radius) leg of the curved turnout as the "mainline" and the larger radius leg of the curved turnout on the outside to connect to the siding?
Have you tried my other suggestion, using a conventional turnout's slightly curved route as the mainline curve, and the straight route as the siding connection? Again, this would be to the outside, so you wouldn't have to move your siding.
Traction Fan 🙂