Enquired about S5 boards and controller. About $500 to get part's but no warranty if put in C1 case.
However...
This is what they said at the bottom of the email;
"if you are in no rush we have some nice things prepared for near future so stay tuned."
So I am guessing I am going to get rid of my hash baords but keep the c1 case and do a watercooled single s5