That looks like a pretty good setup, but you may want to save a couple bucks and go for the non-vario version of the D5, IMO. I mean, really, how many times are you going to change the pump speed? (Unless you want to do some testing I suppose)
Now, I don't have a good feel for that rad, but perhaps someone else knows a little more?
One final (and very important) piece: FANS
Are you looking at getting new ones, or recycling?