In the picture you see an oddball Y fitting, two homemade valves, and a pipe to the blower:
Notice all the flanges. Had to make those so that I can disassemble this later. Here's a homemade valve; involving a 16p nail and a scrap cutout from the hole saw:
This one locks into the tabs on the blower. Again, custom made with no pattern.
You can see the blower is on there now. Much better setup than the demonstration. I still need to make a real support for it. But all this is in place now, and I am ready to flare gas. I want to get a little more pipe work done before I flare, though. There will be PVC under the bed, and a hay filter - next time.