Same here SAK. I have my 1.33 on the way.
DANGER BELOW....I AM NOT GOOD AT DESCRIBING THINGS WITHOUT GRAPHICAL REPRESENTATIONS BUT IM GONNA TRY ANYWAYS

:disgust::frown:
I built my block. We had some 1/4"X2" copper buss bars laying around my plant. I whacked off some parts to give it a try.
This is what i did.
Cut several(only need 2, but made a few extra's in case i messed up.) bars at 2"X2.25". Decided how i wanted the water to flow. I chose instead of doing like dangerden and all others are doing to do mine a bit different.
I cut 5 slots about 1/8" wide 3/16" Deep leaving about 1/8" in the middle of them. I did not go all the way through from one end to the other, but left around 1/16" or so on each end of the slot. Looks kinda like a garden in there. Then I cut on another piece of copper 2 slots, one on each end. About 1/8" deep 1/4" wide. Then drilled through the holes my fitting size i wanted to use for the inlet and outlet.
After that. I stacked them on top of each other. Making sure that the slots onthe bottom part were perpindicular to the slots on the top. I then clamped them together and milled the ends down so the bar was 2"X2" or close enough.
After they are the same size and all matched up. I drilled some through holes in the top part for some 4x40 machine screws. And drilled and tapped the bottom to match that. After that as complete I removed the screws and smeared some rtv high temp sealer on both the top and bottom parts(the insides of them that needs to seal up. Use a thin layer and let it set up for a few hours. After the wait clean your garden rows and your pipe fitting holes and the machine screw holes. Then slap em together and screw em tight. I tightened mine like i would a wheel on a car. Pulling it together as evenly as possible.
I do not have a CNC mill at work. I basically eyeballed alot of it.
If you want i can make a simple jpeg to show how it looks. real basic and easy to do. Im not a machinist, but know how to do some basic stuff like this.
Hope this helps