Pretty sure this is min cost. Other than that, it isn't optimized at all.
Very happy to get this to work. I guess it was because most things worked anti-clockwise, but the first half of the assembly was much harder than the second half.
I can't prove you need track, but 3 input, 1 output, half projection and half debonder means 0 access bonder and a waste chain and I don't think it can be made to work. Hats off to anyone who can prove me wrong.