I am not experienced in prod cycles so take what I say with a grain of salt. I first found a layout that could assemble the product using salt/qs/silver trios, this one can work at 22 cycles per period, and then I tried to find reliable chambers that at least could support one vitae/silver per 8 cycles. In this case, my chamber can temporarily output vitae/silver every 6 cycles with manual hardcoding, which has dropped my initial looping solve from 159 cycles to 149. There is probably a looping 23 cycles per product solution but I couldn't find it. I think my solution can go even lower with further hardcoding, so far every hour invested in the solution yields one extra cycle saved, but I am running out of time. I think min C for this layout is around the low 140s.