It seems like you are buying from Idealtech, they only carry Plextor and Samsung SSD, last time got Liteon but not sure now still have or not, if still got, then Liteon S900 128GB/256GB is one of the best choices.

As for RAM, go for 1x8GB instead if possible, but I know Idealtech is selling 2x4GB instead of 1x8GB (if I am correct), either the value RAM (2133MHz, RM 249) or RipjawsV (2400MHz, RM 329) will do.

Both of the GPU you've listed are very expensive, nearly 1.9k for GTX970, well it doesn't look worth to me at all, top up another 300 and you can get GTX980 (Palit), some other shops are selling GTX980 below 2k and AMD equivalent card (R9 390 with 8GB VRAM) at 1.6k mark only, 1.9k can get you a R9 390X which is even better than GTX980.

Well your choice 

Any reliable source or claim that can support your statement? 
Take note on the screen type, cheap IPS normally comes with glossy screen type, which mean you will see your reflection on the screen if you are under bright light source.

RT-N14UHP is compatible with UniFi and HyppTV.

Maybe in the future. But not for now I think. Maybe by then can get a better cooler...