yikes.... 1/4
I cant really give you a good recomendation on any standard watercooling pumps. I did some research, thinking you would reply and ended up with not so great news.
The tubing is very restrictive that it will damage a dangerden D5 / DDC / DDC+ as well as there swiftech counter parts.
You could pull it off for a year on a DDC, or Swiftech 350, but as i said, you would seriously shorten its life on that loop.
Also, i dont think that setup would be really worth installing. Its raited at best near the same capacity as a tuniq tower. The new TT's LCS systems all use 3/8ID, as well as have a much stronger pump. <even tho i dont think those are very reliable too>
So at this point, you can have fun with it, until, or if it ever does, your pump dies. Or you can just start with AIR to begin with.
That is my suggestion, as much as i hate to give it. If you want recomendations to replace the entire kit, feel free to pm me.