There is many reasons why you should Avoid thin and small notebooks like Razer abominations.
Thermal Throttling (heavy, this is not going to be any workstation, wasted money)
GPU/CPU turbo not working due to limited thermal (BIOS&vBIOS) and probably weak PSU
Soldered CPU and GPU (unupgradeable)
Very bad screens (TN or cheap IPS mostly) with bad color gamut
You should really think about P771DM (or P775DM) with i5 6600k and 970M config. You will upgrade it later and this config will be cheap. Laptop is very thin for it’s DTR Segment and keep desktop CPU & GPU cooler. P771DM cannot be upgraded with QFHD screen (if it matters). i5 + 970M will be cheap to buy.
I recommend you to call MySn.Eu for example or other Clevo reseller near you. Most of them ship worldwide. And you can get good $ pricing when you contact them. It’s worth it.
Nawrot, get Clevo P870DM, it’s the only notebook with 980 Mobile 200W version (takes 2 cooling slots for 2 GPUS). Desktop CPU (i7 6700k) and supports to 64gb ram. x2 M2.0 slots (I’ve 250gb + 500gb ssds on these) and 2 HDD bays. And consider QFHD screen. It’s very great display (8bit IPS) with awesome color gamut. Standard one (FHD, IPS 75Hz) has G-Sync (overrated). But i don’t recommend you a desktop 980 mobile version since you won’t be probably able to sell this GPU and upgrade it to Pascal/Polaris GPU (only P870DM is compatible with these 980 200w, hard to find customer). But I don’t know any good docking station for this laptop, since I don’t them after switching from HP Elitebook.
I’m using x2 display ports to connect P870DM to two Dell U2414H and works well. It also has HDMI and Thunderbolt 3.
Welcome to the DTR world, because desktops are past!