A guy O know started making them, they were cut on a laser cutter and bent on a CnC bender, then welded and powder coated. I'm not sure if the guy is even messing with water cooling anymore as I haven't seen him around in a long time, but they were some nice shrouds.
I hope that gives me enough clearance. I'm going to take some measurements. They say you can use two if you need to futher increase the height but I'm concerned about the beveling on the shroud. It doesn't look like it stacks.