Need Water cooling help

Hello Guys ,
These days when I try to run games on high settings on my XFX R7950 Core Edition. It reaches a whooping 80-90 on Ultra and 90+ on Ultimate In Tomb Raider. Though I completed the game , I felt it would affect it in the long run. As I plan to run it for couple for years more , I realized its not good at all. So I decided to put a cooling loop in my PC. Though I tried to find the perfect parts its not working. Can you guys suggest me the perfect parts for the loop. My uncle who lives in the US ( I live in India and cant find parts here ) departing for India on the 3rd June of this year. Can you guys suggest me parts for the loop ASAP ? Also is it possible to get the parts before 2nd June ? My budget is 300 bucks. I want to cool the GPU and CPU. Nothing else. Can you guys suggest me parts ASAP ?
BTW Specs -
CPU - Intel i5-3570K
GPU - XFX Radeon 7950 Core Edition ( One )
Case - BitFenix Merc Alpha
The top two fan mounts are free. So are the side ones.
 
im checking on xoxide for you to find a setup but im not sure is possible in that range, the gpu water blocks are expensive. you deff want a 360mm radiator though.

also id just try adding for fans personally to your case to help cool it as well as raise the fan speed on the card. that or just get a waterblock and 240mm rad and a pump for your gpu and get a single 120mm rad later on for your cou
 


I don't necessarily need to cool the CPU since it never crossed 60. Even if there's only the GPU in the loop , I dont care. The GPU is what I need the most.
 


WHat about fittings and tubings , coolants , etc ? Can u suggest them ?
 



any coolant will work, you can even use 50/50 car rad fluid like i do haha or just distilled water with algaecide will do as well. any fittings will do but i recommend some 90 deg fitting, some 45s and some normal fittings. any decent fittings are ok, dont go with cheap ones they brake when tightening them. what size tubing do you want to use 1/2 or 3/8 inner diameter?

heres a good place to pick some watercooling parts http://www.xoxide.com/watcoolcas1.html

also dont forget some thermal compound preferably arctic silver, but watch out its conductive so dont put to much so it runs onto the pcb