I’m calling it. I should have a long time ago, but now that’s it.
I couldn’t resolve everything, and my guesses didn’t get me anywhere. There are probably a lot of things wrong on this, but this is as far as I’ve gotten. I’ll revisit it another day, but that’s it for today.
I really wish I could have gotten the answer to 61A, and usually I figure the one out that brings them all together after figuring out the thread and the other answers, but none of that happened today. Better luck tomorrow, right?