As this thing sits vertical in my Thermaltake View 71 its litteraly 7mm from the side panel and this as we all know temps suck with GPUS pushed right up against the tempered glass.
Have you taken into account that you are going to have to turn the water direction? like, fit both fittings into the back of the GPU where there is not much space?
I think you'll find you need more fittings than you allocated. This is what I mean....
See how both of the fittings in the GPU have to be in 90' rotaries? so not only do you need a fitting per hole, but you also need a 90' rotary.
You also need two plugs for the back side, if Barrow didn't provide any.
Now you could just buy 90' rotary fittings (that go straight onto the tube) but yeah, you now need to move onto phase 2 of planning and that is direction. Remember, a fitting just literally sends the hose out straight and the chances are you're going to need to turn it. You are never, ever going to fit that into 7mm. So you now need to take tolerances into account. IE - measure the back side of your GPU to make sure you have enough room to fit a 90' fitting behind the card. You're also going to find that a sod, because the back part of the card will likely get its flow from the CPU block, and if it's tight back there you could even find yourself ordering a new case..
That's the thing with water cooling. In the rare case that people buy a "kit" and throw it all in it looks like ass with hose running all over the place. Doing it tidy? that's the art.
Personally I would order what you listed, but just know you'll be spending at least another 100 euro on top of that to make it actually work.
The more homework you put in now? the easier it will be. As I said though, do totally expect to get stuck and be ordering more parts and waiting for them to arrive. I ended up using a buttload of fittings to make my loop look so tidy. I also had an issue where this.
Was running into a fitting due to the way I decided to use the pump top (side load)
So the solution was this, costing me a whopping £18.
Which handily goes around the T shaped bulb part (like they didn't know when they designed it lmao)
You will no doubt end up with a pile of spare fittings at the end. I also wanted my hose to curve up before going to the GPU, so that meant another 90' fitting.
It was worth it though, I will say that.
Edit to add. I also used about five 45' fittings to make sure that the joins between the rads and res were as clean as possible.
That is from another one of my rigs. I was using 19mm hose, so it had to be aimed perfectly or it kinked.
See what I mean? it's things like that which cost you the cash dude. As I said though, totally worth it. It will last through every upgrade you ever make.