way to go! You can put in a nice reservoir vor filling and bleeding. I got me a bayres.
Don't forget to lap yout WW to at least 1200 grid sandpaper. Also your CPU needs some lapping (P4) (don't try to lap the core of an AMD) And Atrec silver 5
Keep your tubes as short as possible and don't kink them.
If you go for the WW and the bayres, you can keep the outlet of the WW split, This helps a bit.
and if possible use 1/2" tubes. 3/8" will work, but then you have 1 .5 to 2.5 higer temp.
Place the fans in push pull