Hey guys I've hit a snag on my build now that I have all my main components. I want to do a custom watercooling loop for the first time since I've been building systems. I've probably built 12+ 'custom' systems at this point but never really taken it to the next level. So I started one to really push the limits of what I know about building.

My specs are in my sig, currently I'm running of the air cooler on my Poseidon.

I think my intention for the loop is as follows:
Res -> Pump -> Poseidon 980 -> Poseidon 980 -> 240mm radiatior -> M7Formula -> 140mm Radiator -> i7-4790k -> 360mm radiator & then back to the res.

My case should support a 360mm rad on top, and a 240mm rad in front. I'm not positive but I believe the top has to be thinner while the front can be the thick. The rear of the case has a spot for a 120mm/140mm rad but I think I will have to mount the fan in the back and the rad inside due to motherboard cooler clearances. I also want to try many hand at rigid tubing.

The CPU cooler I'm looking at is http://www.performance-pcs.com/swiftech-apogee-xl-ppcs-custom-rog-edition.html
and obviously the GPU's and motherboard are already setup with blocks.

What do you guys think of the CPU waterblock?
What is your recommendation for the loop?
What radiators would your recommend?
What pump and res would you recommend?
What tubing is recommended in what size?

Any insight is helpful I'm currently at a stand still.
I have another Poseidon 980 for SLI and Samsung 850 Pro for Raid on order