I'm trying to build my own Pro/Mini which trully rulezzzz

But since I have trouble finding the reservoir used in it, I wondered if I could just make it without
Whats your opinion ?
Is it better to use a reservoir ?
What are the drawbacks of both methods
Which one will give the best performance ?
They using a 8oz reservoir which is rather small, will it make a difference ?
plz help me
and btw what do you think is the best Socket 370 (PGA) Waterblock ?
Is it possible to fix the DangerDen Maze 2 on it ?
Thanks in advance guys