That was my main concern- to do not crack the block. Oh well. Will give it a go. Hopefully it will be right.

i did also change Rad to sr1 and reservoir to xspc - couldn't justify to spend nearly £70 on bay reservoir. But I'll change (read - mod) the Faceplate to adjust to my needs.
Maybe an aquereo 5 XT?
I wish I could justify 140 on fan controller. It looks amazing, but that price...

For both of them. Should have been read this before I've placed the order.
Rad has been send back. I manage to sell xspc reservoir, so now waiting for this one.
Also still waiting for backplate for me 580. The company which I've ordered from (the only one in UK, which has them in stock) for some reason run out of the stock. I thought if you are buying something it should be allocated to your order. But it seems to this isn't a case.