Water cooling dual GTX 780 ti classifieds. Have some questions

I'm new to water cooling and I am going through the guide and such but I have some questions I'd like to ask as well.

I've found a couple water blocks that look good but wanted to know which would be better.

http://www.frozencpu.com/products/2...EK-FC780_GTX_Classy_-_AcetalNickel.html#blank

http://www.frozencpu.com/products/2...ickel_EK-FC780_GTX_Classy_-_Nickel.html#blank

There are a bunch of extra things you can add to your purchase, like fitting and accessories and I don't really know what any of them mean. Should I get that backplate? I'm guessing that I should.

Another question I had is about the radiator size. The Loop is going to just cool my 2 GPUs. My case is a corsair 750D and I have my cpu cooled by a corsair h100i, the 120.2 radiator is mounted to the top of the case.

The only spot in my case I could mount a radiator currently is in the front. I can fit a 140.2 radiator there. Will that be sufficient for 2 cards?

Any other recommendations or references you guys can provide that would help me out would be great.

Frozen is only taking phone orders, you might want to call them about availability first. They had major management issues a while back.

Backplate is only for pretty looks.

140x2 should be fine with good fans.

Make sure you understand how the watercooling SLI connector works and which to get.

http://www.frozencpu.com/cat/l3/g30...ittings-Accessories-SLI_Connectors-Page1.html

I'd find the EVGA blocks, personally.

ATMINSIDE said:

I'd find the EVGA blocks, personally.

Click to expand...

I also agree even thought they're really tough to find. If anything, EK blocks should be fine.

Backplates are great for looks but also good in bolstering the PCB as much as possible.

Also helps cool for certain GPUs that have some of the RAM on the backside but most GPUs don't. Years ago they did.

ATMINSIDE said:

I'd find the EVGA blocks, personally.

Click to expand...

Can't find em anywhere.
and anyway, i think those only come when you buy it with the card