I'm eager to try out custom water cooling for my next build (I have not purchased any components for this yet). I have no experience and very limited knowledge on the recommended parts to make this work. In the mean time, I came up with this plan/layout and would want to hear your thoughts.

Generally, my questions are:

1. Water cooling components and fans, overkill / insufficient / just enough?
2. Pump should I use (DCP? MCP 355? MCP 655? PWM? Vario? etc..) and capacity?
3. A 50mm-dia. reservoir is my limit due to space constraints of the case (not sure if I can fit a 65mm-dia.), how tall must it be (or does the liquid volume even matter)?
4. I want to use acrylic hardline/rigid tubes (I know, it's a challenge and for a beginner, it's often suggested to use flexible tubing...). Any tips based on the layout I made?
5. For the radiators, do I need thicker ones? Would the bottom radiator (intake) significantly contribute to the interior heat?
6. Where do I put the drain and in-fill line?


Any other tips would be greatly appreciated! Thanks in advance!