I've seen people use those AIO coolers on their GPU's with a special mounting bracket. What I haven't seen and would like to do is use a h80i or similar on a gpu but use a dual 80mm rad. Im trying to tuck it somewhere a 120 rad wouldnt fit. Above is an image of the inside of my case and what I was thinking is putting this product down in the botton left cornor and using a AIO cooler like the h80i as the pump/block combo for the GPU. How hard is it to change out the rad? I know it's not advisable, but I doubt this new rad would be any more work than the original rad on the h80i is.