Do not ever double up on RAM kits. If you need 64 gig, you need to buy a 64GB kit of chips binned together as one 64GB kit. 64GB for you is likely overkill however. I would drop down to 16 or 32GB and get a TridentX Kit like someone already suggested unless you absolutely need that much RAM.
1200W is overkill. You can get away with 1000W if the price in NZ is vastly different. Either Seasonic 1000 Gold/Platinum or an eVGA 1000 Gold Platinum which in New Zealand might show up on the market as Seasonic and Super Flower Leadex Gold/Platinum. Beware the Leadex is white and has white LEDs in the modular connectors if you get the original OEM variant. The eVGA is black. Do not get 860W as you said you might run 2x cards and I always like to play the 'safe' card with a little more watts.
As someone already stated when you get RAM heatsinks they are high-restriction and aren't really needed even if you are overclocking the ram. You can get away with the spreader alone and some airflow from a fan. The same goes with the motherboard chipsets, high restriction and the VRM section is made to take heat. It does look cool however so if you want to do it... The pump in the res is the PMP-400 which has a TON of head pressure so it should be able to do it Maximum Head Pressure: 5.5m (18ft)!!! Just note that it doesn't add anything except for looks cool.
You do have a problem however. You're right at what I would say is the 'safe' zone radiator wise. I would say run a 240 + a 360 here ESP because you said you want to have a 2nd card coming down the line. That case can fit a 240mm additionally vertically in the front but I don't know. You might have to change up the case.
If you get tubing, get Primochill Advanced LRT, not just LRT, Advanced LRT.
Mobo: Rampage IV BE | CPU:
i7-4930@4.5ghz Hexacore | RAM: 32GB Corsair V-Pro | GPU:
4xR9 290X Quadfire | PSU: eVGA P2 SuperNOVA 1000W\G2 850W | Chassis: NZXT Phantom 820 | Cooling: XSPC Raystorm CPU Block\4xEK 290X Block\2x Laing D5\XSPC Dual Bay Res\Phobya G-Changer 1080 External Rad\Alphacool 140UT60\XSPC AX360 | Fan Con: Lamptron CW611 | Tube: Primochill Adv. LRT Bloodshed Red | 3xCrossover 27" 2560x1440 Monitors |
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