Need help with watercooling setup

[Glurion]

Ok so i recently decided to get rid of the fans and get a water cooling system (never used water cooling before so bear with me(i just want a standard, radiator > reservoir > pump > water block and looping back configuration for now. i may go further and have a chipset & graphics card block when i next upgrade my card)).

So now here is the problem I've been looking at kits (one which comes with everything) and they all tend to have 120mm radiators and fans which unfortunately my case does not have a 120mm slot on the rear (only on front but a radiator and fan would not fit, i doubt i could get at the fan itself anyway + i don't want to be blowing hot air in through the front), below is a quick diagram of my current setup.



current heatsink can be found here

so i decided to have a go at choosing the components myself, (below are the ones i choose, using 3/8" hose connectors and tubes, i'm going to link you to the shops but I'm not sure if I'm allowed to so if its against the rules just tell me to take them down )

Water Block
Radiator
Pump/Reservoir
Coolant

So if anyone has any suggestions on something better (or if i've made a mistake), for around the same prices as these, i'd really appreciate the help.

Also i know the pump isn't exactly powerful, and i have taken this into account (found a separate reservoir, but it means I'd need to find a separate pump for around the same price as the reservoir/pump combination), so any tips, suggestions, corrections, and just general help would be much appreciated as i don't want to waste around £100 on something which will be useless.