87c is only Linx - nothing else can get it anything like that. Prime gets to 81/78/75/73 when run in conjunction with furmark. Prime on its own does 72/69/66/64.

I dont get cpu temp related crashes until it hits 94c.

There's going to be an extra rad going in the front - I have a 240mm XT which will go in without much effort, or rev.1 360mm XT which will require much case cutting to fit. The 240mm wouldve been in already except OCUK cant tell 3/8" tube from 1/2" tube (and are STILL arguing with me over it - their whole XSPC tube range is a size smaller than advertised).

I put gfx before cpu as the gfx gained the most from the coldest water. It was also the most efficient way to pipe it up so happy days. I didnt lose any cpu clock by having gfx and nb before it in the loop and only added 3 to 4c core temp. Parallel flow gfx is essential to make sure temps are even and flow isnt restricted by two gfx blocks in series. Won't be a problem for the OP ofcourse as he only has one block to contend with on that card.

It'll work just fine and you should get better temps than me (one less gfx card VRM, better cpu block and better radiator). Id reccomend push pull on the radiator if possible. Makes a massive difference on a loaded loop.