HenryGR
Koolance makes incredible blocks and I always had a great experience with them... I rather just go with them.
I've bought 4 quick disconnect (QD3 BLACK) and 2 pumps from Koolance.. The QD3 flaked all of the paint off in under a week and clogged up the blocks, using distilled water only.. The reservoir for the pump wouldn't even allow the threading to work. Koolance refused to replace the QD3 fittings and made me pay to ship the reservoir back before they would replace it. The shipping costed more than buying a new one.
Koolance is a horrible company, no matter how good their block is. I have no trust or want to ever deal with Koolance again.
I would look to bits power, as they did make a 980ti Kingpin block, since it shows that they are willing to make a block for a nonreference PCB.