a descriptive title would be first thing you need;
back to subject, the number and thickness of rads are not determining factors when you want to build a wc loop.
first of all if you got enough space for one, secondly where are you going to mount rads, will the air pressure be enough? will you have to get better fans such as noctuas.
how will the loop look like, draw a quick sketch and label the water flow, with estimated tempratures.
but most importantly give us more info if you want to be lazy and have other do the job for ya.
ps. hope doesnt sound too negative, didnt mean to be rude or anything, if you want some help you gotta put some effort of your own.