Hoping to get some help checking compatibility of the components I have chosen. Also, any suggestions would be much appreciated. I from the UK with a budget of like £500 for water cooling. I already have a system with a gtx1080 and a 6700k I just think upgrading to a water-cooled build would be fun to do, look cool, give room for overclocking and be quiet. I noticed water cooling parts are a lot cheaper on Ek's website and are in euros which isn't really a problem. To make it clear the things I am buying new are the case, motherboard, possibly 1180 and all water-cooling components.
Case - Thermaltake Core P3
Motherboard - Asus ROG MAXIMUS IX APEX Socket 1151 Z270 DDR4 S-ATA 600 E-ATX Motherboard
CPU - i7 6700k
GPU - Gtx 1080 (likely to wait for 1180 or 1180 ti)
PSU - 1000w corsair rm
ram - 2 sticks of 8gb dominator platinum
Radiator - EK-CoolStream CE 420 (Triple)
CPU block - EK-Supremacy EVO - Nickel
GPU block - EK-FC GeForce GTX FE RGB - Nickel (placeholder for 1180)
pump and reservoir -EK-XRES 140 Revo D5 RGB PWM (incl. sl. pump)
fittings - EK-HDC Fitting 12mm G1/4 - Black
tubing - EK-HD PETG Tube 10/12mm 500mm (2pcs)
fans - 3 x Corsair LL140 RGB + Corsair command pro
+ coolant, heat gun and other tools for hardline