There is barely not enough space to maneuver the molecules for the last bond. There are moves I can make that stay within 23A, but they don't maintain input suppression. I think I might be able to solve this by building the non-triplex silver of the first product with 4 quicksilver instead of 5 quicksilver so that I have a spare atom to work with for scaffolding and suppression. If that works it will require 12P which sounds painful, unless I give up a bunch of cycles by making it conditional.