Well I can't tell you where to find a "God Guide" , but there is plenty of information in this water cooling section that you could read .. It really isn't that hard to do... if you can push tubing on barbs & secure it with clamps, you've sussed it. The hardest part is picking components to match what you are trying to cool
I have no clue where he might find summit like that in the Norway region which is why I suggested Water Cooling Shop with them being in the UK.
maybe he lives elsewhere if he actually lives there hes the first ive seen from there hahahaha